Remove helpers in api repo (#315)

These are moved to sdk-go

Signed-off-by: Jian Qiu <[email protected]>

Author: qiujian16

.github/workflows/cloudevents-integration-test.yml

@@ -3,14 +3,10 @@ name: Go
 on:
   workflow_dispatch: {}
   pull_request:
-    paths-ignore:
-      - 'cloudevents/**'
     branches:
       - main
       - release-*
   push:
-    paths-ignore:
-      - 'cloudevents/**'
     branches:
       - main
       - release-*

.github/workflows/go.yml

@@ -54,10 +54,6 @@ verify: check-env verify-scripts verify-codegen-crds verify-gocilint
 
 update-scripts:
 	hack/update-deepcopy.sh
-	# Using controller-gen as a workaround for cluster:v1alpha1 because gengo
-	# isn't respecting deepcopy-gen:false nor does it support generics
-	# Issue: https://github.com/kubernetes/gengo/issues/225
-	$(CONTROLLER_GEN) object:headerFile="hack/empty.txt" paths="./cluster/v1alpha1"
 	hack/update-swagger-docs.sh
 	hack/update-codegen.sh
 	hack/update-v1beta1-crds.sh