Adds withoutEagerLoad function (#42641)

* Adds `withoutEagerLoad` function

* Update Builder.php

Co-authored-by: Taylor Otwell <[email protected]>

Author: mahmoudmohamedramadan

src/Illuminate/Database/Eloquent/Builder.php

@@ -1573,6 +1573,19 @@ public function setEagerLoads(array $eagerLoad)
 
         return $this;
     }
+    
+    /**
+     * Indicate that the given relationships should not be eagerly loaded.
+     *
+     * @param  array  $relations
+     * @return $this
+     */
+    public function withoutEagerLoad(array $relations)
+    {
+        $relations = array_diff(array_keys($this->model->getRelations()), $relations);
+
+        return $this->with($relations);
+    }
 
     /**
      * Flush the relationships being eagerly loaded.