Remove un-needed default set for predicate

pierredup · pierredup · commit 18bd6b930969 · 2018-03-25T21:09:53.000+02:00
diff --git a/src/Collection/filter.php b/src/Collection/filter.php
@@ -51,10 +51,6 @@
  */
 function filter(iterable $array, $predicate = null): array
 {
-    if (null === $predicate) {
-        $predicate = '_\identity';
-    }
-
     $iteratee = baseIteratee($predicate);
 
     $result = \array_filter(
diff --git a/src/Collection/find.php b/src/Collection/find.php
@@ -53,10 +53,6 @@
  */
 function find(iterable $collection, $predicate = null, int $fromIndex = 0)
 {
-    if (null === $predicate) {
-        $predicate = '_\identity';
-    }
-
     $iteratee = baseIteratee($predicate);
 
     foreach (\array_slice($collection, $fromIndex) as $key => $value) {
diff --git a/src/Collection/findLast.php b/src/Collection/findLast.php
@@ -30,10 +30,6 @@
  */
 function findLast(iterable $collection, $predicate = null, int $fromIndex = 0)
 {
-    if (null === $predicate) {
-        $predicate = '_\identity';
-    }
-
     $iteratee = baseIteratee($predicate);
 
     foreach (\array_slice(\array_reverse($collection, true), $fromIndex) as $key => $value) {
