Issue #2414647 by topsitemakers: Not all variables are removed on hook_uninstall

clientside_validation.install

@@ -89,6 +89,8 @@ function clientside_validation_uninstall() {
     'clientside_validation_use_minified',
     'clientside_validation_validate_all',
     'clientside_validation_validate_specific',
+    'clientside_validation_usexregxp',
+    'clientside_validation_xregxp_variant',
   );
 
   foreach ($variables as $name) {