Remove v1beta1 CRD

This is removed in Kubernetes 1.22
https://kubernetes.io/blog/2021/07/14/upcoming-changes-in-kubernetes-1-22/#api-changes

Signed-off-by: Baiju Muthukadan <[email protected]>

Author: baijum

test/acceptance/features/discoverBindableResources.feature

@@ -15,11 +15,3 @@ Feature: Discover bindable resources in a cluster
         And User acceptance-tests-dev can read resource bindablekinds/bindable-kinds
         And Kind ProvisionedBackend with apiVersion stable.example.com/v1 is listed in bindable kinds
         And Kind BindableBackend with apiVersion stable.example.com/v1 is listed in bindable kinds
-
-    @crdv1beta1
-    @external-feedback
-    Scenario: Discover bindable service when defined by v1beta1 CRD API
-        Given OLM Operator "provisioned_backend_crdv1beta1" is running
-        Then bindablekinds/bindable-kinds is available in the cluster
-        And User acceptance-tests-dev can read resource bindablekinds/bindable-kinds
-        And Kind BetaProvisionedBackend with apiVersion stable.example.com/v1 is listed in bindable kinds