Remove unused code and comments from GatewayClass webhook

Clean up redundant license header, TODOs, and unused variables to streamline the code. This improves readability and focuses on the essential functionality of the webhook setup.

Author: dspo

internal/webhook/v1/gatewayclass_webhook.go

@@ -1,19 +1,3 @@
-/*
-Copyright 2024.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
 package v1
 
 import (
@@ -31,8 +15,6 @@ import (
 	gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
 )
 
-// nolint:unused
-// log is for logging in this package.
 var _gcLog = logf.Log.WithName("gatewayclass-resource")
 
 // SetupGatewayClassWebhookWithManager registers the webhook for GatewayClass in the manager.
@@ -45,11 +27,6 @@ func SetupGatewayClassWebhookWithManager(mgr ctrl.Manager) error {
 		Complete()
 }
 
-// TODO(user): EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
-
-// TODO(user): change verbs to "verbs=create;update;delete" if you want to enable deletion validation.
-// NOTE: The 'path' attribute must follow a specific pattern and should not be modified directly here.
-// Modifying the path for an invalid path can cause API server errors; failing to locate the webhook.
 // +kubebuilder:webhook:path=/validate-gateway-networking-k8s-io-v1-gatewayclass,mutating=false,failurePolicy=fail,sideEffects=None,groups=gateway.networking.k8s.io,resources=gatewayclasses,verbs=create;update;delete,versions=v1,name=vgatewayclass-v1.kb.io,admissionReviewVersions=v1
 
 // GatewayClassCustomValidator struct is responsible for validating the GatewayClass resource