typo correction, duplicate identifier

Author: davegarthsimpson

Diff for: arduino-ide-extension/src/node/auth/authentication-service-impl.ts

@@ -20,8 +20,6 @@ export class AuthenticationServiceImpl
   protected readonly clients: AuthenticationServiceClient[] = [];
   protected readonly toDispose = new DisposableCollection();
 
-  private initialized = false; 
-
   private initialized = false;
 
   async onStart(): Promise<void> {