preserve order, make variadic and handle falsy values in concat [fixes #1437] (#1436)

* preserve order in concat

* remove comment

* fix concatLimit linting

* handle variadic and falsy results in concatLimit [fixes #1437]

* fix tests (typos)

* PR fixes

2 files changed, 0 insertions, 19 deletions

diff --git a/lib/internal/concat.js b/lib/internal/concat.js
deleted file mode 100644
index a55de2e..0000000
--- a/lib/internal/concat.js
+++ /dev/null
@@ -1,11 +0,0 @@
-export default function concat(eachfn, arr, fn, callback) {
-    var result = [];
-    eachfn(arr, function (x, index, cb) {
-        fn(x, function (err, y) {
-            result = result.concat(y || []);
-            cb(err);
-        });
-    }, function (err) {
-        callback(err, result);
-    });
-}
diff --git a/lib/internal/doSeries.js b/lib/internal/doSeries.js
deleted file mode 100644
index 9fea488..0000000
--- a/lib/internal/doSeries.js
+++ /dev/null
@@ -1,8 +0,0 @@
-import eachOfSeries from '../eachOfSeries';
-import wrapAsync from './wrapAsync';
-
-export default function doSeries(fn) {
-    return function (obj, iteratee, callback) {
-        return fn(eachOfSeries, obj, wrapAsync(iteratee), callback);
-    };
-}