minor #1137 Remove redundant u() from PostRepository::extractSearchTerms() (jkufner)

This PR was merged into the master branch.

Discussion
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Remove redundant u() from PostRepository::extractSearchTerms()

These redundant `u()` cause type errors when using `declare(strict_types = 1)`.

Commits
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5c58163 Remove redundant u() from PostRepository::extractSearchTerms()

Author: javiereguiluz

src/Repository/PostRepository.php

@@ -87,11 +87,11 @@ public function findBySearchQuery(string $query, int $limit = Post::NUM_ITEMS):
     private function extractSearchTerms(string $searchQuery): array
     {
         $searchQuery = u($searchQuery)->replaceMatches('/[[:space:]]+/', ' ')->trim();
-        $terms = array_unique(u($searchQuery)->split(' '));
+        $terms = array_unique($searchQuery->split(' '));
 
         // ignore the search terms that are too short
         return array_filter($terms, function ($term) {
-            return 2 <= u($term)->length();
+            return 2 <= $term->length();
         });
     }
 }