Revert "Extend dynamicRef keyword"v4.5.1

It needs performance optimization. See python-jsonschema/jsonschema#941.

This reverts commit 12c791ee81baf27e54d18baf95b975bd48387dc6.

1 files changed, 0 insertions, 83 deletions

diff --git a/jsonschema/_utils.py b/jsonschema/_utils.py
index a4ab2ad..a2ad5a9 100644
--- a/jsonschema/_utils.py
+++ b/jsonschema/_utils.py
@@ -1,4 +1,3 @@
-from collections import deque
 from collections.abc import Mapping, MutableMapping, Sequence
 from urllib.parse import urlsplit
 import itertools
@@ -347,85 +346,3 @@ def find_evaluated_property_keys_by_schema(validator, instance, schema):
                 )
 
     return evaluated_keys
-
-
-def _schema_is_referenced(schema, parent_schema):
-    """
-    Checks if a schema is referenced by another schema
-    """
-    return (
-        "$id" in schema
-        and "$ref" in parent_schema
-        and parent_schema["$ref"] == schema["$id"]
-    )
-
-
-def _find_dynamic_anchor_extender(validator, scopes, fragment, schema):
-    """
-    Find a schema that extends the dynamic anchor
-    """
-    for url in scopes:
-        with validator.resolver.resolving(url) as parent_schema:
-            if _schema_is_referenced(schema, parent_schema):
-                return validator.resolver.resolve_fragment(
-                    parent_schema,
-                    fragment,
-                )
-
-
-def _find_dynamic_anchor_intermediate(validator, scopes, fragment):
-    """
-    Find a schema that extends the dynamic anchor by an intermediate schema
-    """
-    for url in scopes:
-        with validator.resolver.resolving(url) as schema:
-            if "$id" in schema:
-                for intermediate_url in scopes:
-                    with validator.resolver.resolving(
-                            intermediate_url) as intermediate_schema:
-                        for subschema in search_schema(
-                                intermediate_schema, match_keyword("$ref")):
-                            if _schema_is_referenced(subschema, schema):
-                                return _find_dynamic_anchor_extender(
-                                    validator,
-                                    scopes,
-                                    fragment,
-                                    subschema,
-                                )
-
-
-def dynamic_anchor_extender(validator, scopes, fragment, schema, subschema):
-    extender_schema = _find_dynamic_anchor_extender(
-        validator, scopes, fragment, schema,
-    )
-    if not extender_schema:
-        extender_schema = _find_dynamic_anchor_extender(
-            validator, scopes, fragment, subschema,
-        )
-    if not extender_schema:
-        extender_schema = _find_dynamic_anchor_intermediate(
-            validator, scopes, fragment,
-        )
-
-    return extender_schema
-
-
-def match_keyword(keyword):
-    def matcher(value):
-        if keyword in value:
-            yield value
-    return matcher
-
-
-def search_schema(schema, matcher):
-    """Breadth-first search routine."""
-    values = deque([schema])
-    while values:
-        value = values.pop()
-        if isinstance(value, list):
-            values.extendleft(value)
-            continue
-        if not isinstance(value, dict):
-            continue
-        yield from matcher(value)
-        values.extendleft(value.values())