Use tags in .exs file as exclusion source of truth

We have been redundantly excluding tests by listing them in the
skip.elixir file and also adding a `:pending` or `:skip` tag. Output of
`elixir-suite` before:

Finished in 88.4 seconds
306 tests, 0 failures, 16 excluded, 1 skipped

and after:

Finished in 85.8 seconds
438 tests, 0 failures, 135 excluded, 1 skipped

1 files changed, 3 insertions, 286 deletions

diff --git a/test/elixir/test/config/skip.elixir b/test/elixir/test/config/skip.elixir
index faed9f490..21a5012e5 100644
--- a/test/elixir/test/config/skip.elixir
+++ b/test/elixir/test/config/skip.elixir
@@ -1,288 +1,5 @@
 %{
-  "AllDocsTest": [
-  ],
-  "AttachmentMultipartTest": [
-    "manages attachments multipart requests successfully",
-    "manages compressed attachments successfully"
-  ],
-  "AttachmentNamesTest": [
-    "saves attachment names successfully"
-  ],
-  "AttachmentPathsTest": [
-    "manages attachment paths successfully - design docs"
-  ],
-  "AttachmentRangesTest": [
-  ],
-  "AttachmentViewTest": [
-    "manages attachments in views successfully"
-  ],
-  "AttachmentsTest": [
-    "COUCHDB-809 - stubs should only require the 'stub' field",
-    "empty attachments",
-    "etags for attachments",
-    "implicit doc creation allows creating docs with a reserved id. COUCHDB-565",
-    "large attachments COUCHDB-366",
-    "md5 header for attachments",
-    "saves binary",
-    "COUCHDB-497 - empty attachments",
-    "update attachment"
-  ],
-  "AuthCacheTest": [
-  ],
-  "BasicsTest": [
-  ],
-  "BatchSaveTest": [
-  ],
-  "BulkDocsTest": [
-  ],
-  "ChangesAsyncTest": [
-  ],
-  "ChangesTest": [
-  ],
-  "CoffeeTest": [
-    "CoffeeScript basic functionality"
-  ],
-  "ConfigTest": [
-  ],
-  "CookieAuthTest": [
-  ],
-  "CopyDocTest": [
-  ],
-  "DesignDocsQueryTest": [
-  ],
-  "DesignDocsTest": [
-    "circular commonjs dependencies",
-    "commonjs require",
-    "module id values are as expected"
-  ],
-  "DesignOptionsTest": [
-    "design doc options - include_desing=false"
-  ],
-  "DesignPathTest": [
-    "design doc path",
-    "design doc path with slash in db name"
-  ],
-  "ErlangViewsTest": [
-    "Erlang map function",
-    "Erlang reduce function",
-    "Erlang reduce function larger dataset"
-  ],
-  "EtagsHeadTest": [
-  ],
-  "FormSubmitTest": [
-  ],
-  "HelperTest": [
-  ],
-  "HttpTest": [
-    "COUCHDB-708: newlines document names",
-    "location header"
-  ],
-  "InvalidDocIDsTest": [
-  ],
-  "JsonpTest": [
-  ],
-  "JwtAuthTest": [
-  ],
-  "ListViewsTest": [
-    "COUCHDB-1113",
-    "HTTP header response set after getRow() called in _list function",
-    "abort iteration with reduce",
-    "empty list",
-    "extra qs params",
-    "get with query params",
-    "handling _all_docs by _list functions. the result should be equal",
-    "multi-key fetch with GET",
-    "multi-key fetch with POST",
-    "multiple languages in design docs",
-    "no multi-key fetch allowed when group=false",
-    "reduce with 0 rows",
-    "secObj is available",
-    "standard GET",
-    "standard OPTIONS",
-    "stop iteration",
-    "the richness of the arguments",
-    "too many Get Rows",
-    "we can run lists and views from separate docs",
-    "we do multi-key requests on lists and views in separate docs",
-    "when there is a reduce present, and used",
-    "when there is a reduce present, but not used",
-    "with 0 rows",
-    "with accept headers for HTML",
-    "with include_docs and a reference to the doc"
-  ],
-  "LocalDocsTest": [
-  ],
-  "LotsOfDocsTest": [
-  ],
-  "MethodOverrideTest": [
-  ],
-  "MultipleRowsTest": [
-  ],
-  "ProxyAuthTest": [
-    "proxy auth with secret",
-    "proxy auth without secret"
-  ],
-  "PurgeTest": [
-    "COUCHDB-1065",
-    "purge documents"
-  ],
-  "ReaderACLTest": [
-    "can't set non string reader names or roles",
-    "members can query views",
-    "restricted db can be read by authorized users",
-    "unrestricted db can be read",
-    "works with readers (backwards compat with 1.0)"
-  ],
-  "RecreateDocTest": [
-  ],
-  "ReduceBuiltinTest": [
-  ],
-  "ReduceFalseTest": [
-  ],
-  "ReduceTest": [
-  ],
-  "ReplicationBadIdTest": [
-    "replication doc with bad rep id"
-  ],
-  "ReplicationTest": [
-  ],
-  "ReplicatorDBByDocIdTest": [
-    "replicatior db by doc id"
-  ],
-  "RevStemmingTest": [
-    "revs limit is kept after compaction"
-  ],
-  "RevisionTest": [
-  ],
-  "RewriteJSTest": [
-    "Test basic js rewrites on test_rewrite_suite_db",
-    "Test basic js rewrites on test_rewrite_suite_db%2Fwith_slashes",
-    "early response on test_rewrite_suite_db",
-    "early response on test_rewrite_suite_db%2Fwith_slashes",
-    "loop on test_rewrite_suite_db",
-    "loop on test_rewrite_suite_db%2Fwith_slashes",
-    "path relative to server on test_rewrite_suite_db",
-    "path relative to server on test_rewrite_suite_db%2Fwith_slashes",
-    "requests with body preserve the query string rewrite on test_rewrite_suite_db",
-    "requests with body preserve the query string rewrite on test_rewrite_suite_db%2Fwith_slashes"
-  ],
-  "RewriteTest": [
-    "Test basic rewrites on test_rewrite_suite_db",
-    "Test basic rewrites on test_rewrite_suite_db%2Fwith_slashes",
-    "loop detection on test_rewrite_suite_db",
-    "loop detection on test_rewrite_suite_db%2Fwith_slashes",
-    "path relative to server on test_rewrite_suite_db",
-    "path relative to server on test_rewrite_suite_db%2Fwith_slashes",
-    "serial execution is not spuriously counted as loop on test_rewrite_suite_db",
-    "serial execution is not spuriously counted as loop on test_rewrite_suite_db%2Fwith_slashes"
-  ],
-  "SecurityValidationTest": [
-  ],
-  "ShowDocumentsTest": [
-    "JS can't set etag",
-    "accept header switching - different mime has different etag",
-    "deleted docs",
-    "id with slash",
-    "list() compatible API",
-    "list() compatible API with provides function",
-    "missing design doc",
-    "registering types works",
-    "security object",
-    "should keep next result order: chunks + return value + provided chunks + provided return value",
-    "show error",
-    "show fail with non-existing docid",
-    "show query parameters",
-    "show with doc",
-    "show with doc - etags",
-    "show with existing doc",
-    "show with missing doc",
-    "show with non-existing docid",
-    "show without docid",
-    "the provides mime matcher",
-    "the provides mime matcher without a match"
-  ],
-  "UTF8Test": [
-  ],
-  "UUIDsTest": [
-    "sequential uuids are sequential",
-    "utc_id uuids are correct",
-    "utc_random uuids are roughly random"
-  ],
-  "UpdateDocumentsTest": [
-    "COUCHDB-1229 - allow slashes in doc ids for update handlers",
-    "COUCHDB-648 - the code in the JSON response should be honored",
-    "Insert doc with empty id",
-    "base64 response",
-    "bump counter",
-    "doc can be created",
-    "form update via application/x-www-form-urlencoded",
-    "in place update",
-    "update document"
-  ],
-  "UsersDbSecurityTest": [
-    "user db security"
-  ],
-  "UsersDbTest": [
-    "users db",
-    "users password requirements"
-  ],
-  "ViewCollationRawTest": [
-  ],
-  "ViewCollationTest": [
-  ],
-  "ViewCompactionTest": [
-    "view compaction"
-  ],
-  "ViewConflictsTest": [
-  ],
-  "ViewErrorsTest": [
-    "infinite loop",
-    "reduce overflow error",
-    "temporary view should give error message"
-  ],
-  "ViewIncludeDocsTest": [
-    "emitted _rev controls things"
-  ],
-  "ViewMapTest": [
-  ],
-  "ViewMultiKeyAllDocsTest": [
-  ],
-  "ViewMultiKeyDesignTest": [
-  ],
-  "ViewOffsetTest": [
-    "basic view offsets",
-    "repeated view offsets"
-  ],
-  "ViewPaginationTest": [
-    "aliases start_key and start_key_doc_id should work",
-    "basic view pagination",
-    "descending view pagination",
-    "descending=false parameter should just be ignored",
-    "endkey document id",
-    "endkey document id, but with end_key_doc_id alias"
-  ],
-  "ViewSandboxingTest": [
-  ],
-  "ViewTest": [
-  ],
-  "ViewUpdateSeqTest": [
-    "_all_docs update seq",
-    "db info update seq",
-    "view update seq"
-  ],
-  "WithQuorumTest": [
-    "Attachments overriden quorum should return 202-Acepted",
-    "Attachments should return 201-Created",
-    "Bulk docs overriden quorum should return 202-Acepted",
-    "Creating-Updating/Deleting doc with overriden quorum should return 202-Acepted/200-OK",
-    "Creating/Deleting DB should return 201-Created/202-Acepted"
-  ],
-  "WithoutQuorumTest": [
-    "Attachments overriden quorum should return 201-Created",
-    "Attachments should return 202-Acepted",
-    "Bulk docs should return 202-Acepted",
-    "Copy doc should return 202-Acepted",
-    "Creating/Deleting DB should return 202-Acepted",
-    "Creating/Updating/Deleting doc should return 202-Acepted"
-  ]
+  # This file can be used to exclude tests that are not otherwise excluded
+  # via a :pending, :skip, or :skip_on_jenkins tag in the test codebase.
+  # The format is the same as the `suite.elixir` file.
 }