Remove deprecated debug config option

Author: jeromegamez

CHANGELOG.md

@@ -14,6 +14,8 @@ This is a release with breaking changes. Please review the following changes and
   * `Kreait\Laravel\Firebase\Facades\FirebaseMessaging`
   * `Kreait\Laravel\Firebase\Facades\FirebaseRemoteConfig`
   * `Kreait\Laravel\Firebase\Facades\FirebaseStorage`
+* Removed support deprecated config options and environment variables
+  * `$config['debug']`/`FIREBASE_ENABLE_DEBUG`, use the `http_debug_log_channel` config option instead
 
 ## 3.4.0 - 2021-12-04
 ### Added

config/firebase.php

@@ -185,15 +185,6 @@
                  */
                 'timeout' => env('FIREBASE_HTTP_CLIENT_TIMEOUT'),
             ],
-
-            /*
-             * ------------------------------------------------------------------------
-             * Debug (deprecated)
-             * ------------------------------------------------------------------------
-             *
-             * Enable debugging of HTTP requests made directly from the SDK.
-             */
-            'debug' => env('FIREBASE_ENABLE_DEBUG', false),
         ],
     ],
 ];