Remove duplicate definition.

module/VuFindSearch/src/VuFindSearch/ParamBag.php

@@ -248,14 +248,4 @@ class ParamBag implements \Countable
         }
         return $request;
     }
-
-    /**
-     * Get a count of parameters set in the bag.
-     *
-     * @return int
-     */
-    public function count()
-    {
-        return count($this->params);
-    }
 }