chore: remove redundant action

Author: tanhongit

routes/github-project.php

@@ -16,5 +16,4 @@
 
 Route::prefix($routePrefix)->name("$routePrefix.")->group(function () {
     Route::post('/webhook', \CSlant\GitHubProject\Actions\WebhookAction::class);
-    Route::get('/', \CSlant\GitHubProject\Actions\NotificationAction::class);
 });