Changes according to the approved KEP. SCTP is supported for HostPort and LoadBalancer. Alpha feature flag SCTPSupport controls the support of SCTP. Kube-proxy config parameter is removed.

cmd/kube-proxy/app/server_test.go

@@ -211,7 +211,6 @@ udpIdleTimeout: 123ms
 nodePortAddresses:
   - "10.20.30.40/16"
   - "fd00:1::0/64"
-sctpUserSpaceNode: false
 `
 
 	testCases := []struct {
@@ -326,7 +325,6 @@ sctpUserSpaceNode: false
 			ResourceContainer:  "/foo",
 			UDPIdleTimeout:     metav1.Duration{Duration: 123 * time.Millisecond},
 			NodePortAddresses:  []string{"10.20.30.40/16", "fd00:1::0/64"},
-			SCTPUserSpaceNode:  false,
 		}
 
 		options := NewOptions()