Cleanup

src/Jenssegers/Mongodb/Query/Builder.php

@@ -4,7 +4,6 @@ use Closure;
 use DateTime;
 use Illuminate\Database\Query\Builder as BaseBuilder;
 use Illuminate\Database\Query\Expression;
-use Illuminate\Support\Arr;
 use Illuminate\Support\Collection;
 use Jenssegers\Mongodb\Connection;
 use MongoDB\BSON\ObjectID;
@@ -578,7 +577,7 @@ class Builder extends BaseBuilder
     {
         $results = $this->get(is_null($key) ? [$column] : [$column, $key]);
 
-        return $results->pluck($column,$key);
+        return $results->pluck($column, $key);
     }
 
     /**