refactor: use onServerResponse for auth instead of server api

wp-content/themes/ccat/includes/graphql/user-switching.php

@@ -78,26 +78,3 @@ function ccat_graphql_switch_to_mutation( $input ) {
 		'user'         => \WPGraphQL::get_app_context()->get_loader( 'user' )->load_deferred( $target_user->ID ),
 	);
 }
-
-// Register userSwitchBack mutation
-add_action( 'graphql_register_types', 'ccat_graphql_register_user_switch_back' );
-function ccat_graphql_register_user_switch_back() {
-	register_graphql_mutation(
-		'userSwitchBack',
-		array(
-			'inputFields'         => array(),
-			'outputFields'        => array(
-				'success' => array(
-					'type'        => 'Boolean',
-					'description' => esc_html__( 'Whether switching back was successful', 'ccat' ),
-				),
-			),
-			'mutateAndGetPayload' => 'ccat_graphql_switch_back_mutation',
-		)
-	);
-}
-
-// Callback for userSwitchBack mutation
-function ccat_graphql_switch_back_mutation() {
-	return array( 'success' => true );
-}