Revert "Fix: Cast model key to integer to improve query performance o…

…n Postgr…" (#526)

This reverts commit 3f57a4c.

src/PersonalAccessToken.php

@@ -63,10 +63,6 @@ public static function findToken($token)
 
         [$id, $token] = explode('|', $token, 2);
 
-        if ((new static())->getKeyType() === 'int') {
-            $id = (int) $id;
-        }
-
         if ($instance = static::find($id)) {
             return hash_equals($instance->token, hash('sha256', $token)) ? $instance : null;
         }