fix: revert OCI feature that creates breaking change

Signed-off-by: Terry Howe <terrylhowe@gmail.com>

pkg/registry/client.go

@@ -216,16 +216,6 @@ func ClientOptAuthorizer(authorizer auth.Client) ClientOption {
 	}
 }
 
-// ClientOptRegistryAuthorizer returns a function that sets the registry authorizer setting on a client options set. This
-// can be used to override the default authorization mechanism.
-//
-// Depending on the use-case you may need to set both ClientOptAuthorizer and ClientOptRegistryAuthorizer.
-func ClientOptRegistryAuthorizer(registryAuthorizer *registryauth.Client) ClientOption {
-	return func(client *Client) {
-		client.registryAuthorizer = registryAuthorizer
-	}
-}
-
 // ClientOptCredentialsFile returns a function that sets the credentialsFile setting on a client options set
 func ClientOptCredentialsFile(credentialsFile string) ClientOption {
 	return func(client *Client) {