[FAB-3679] Disable brittle TestConnectToAnchorPeers

This test fails from time to time, and I am going to
restructure the logic that this test tests as part of
https://jira.hyperledger.org/browse/FAB-3109 so most
likely would also need to change the test itself.

Disabling the test in the meantime,
and it will be introduced later when it will be more stable.

Change-Id: I8b20a308a7ef60b11f9e7965f8b6ee7380fcf1e8
Signed-off-by: Yacov Manevich <yacovm@il.ibm.com>

gossip/gossip/gossip_test.go

@@ -53,7 +53,7 @@ func init() {
 	discovery.SetAliveExpirationCheckInterval(aliveTimeInterval)
 	discovery.SetAliveExpirationTimeout(aliveTimeInterval * 10)
 	discovery.SetReconnectInterval(aliveTimeInterval)
-	testWG.Add(7)
+	testWG.Add(6)
 	factory.InitFactories(nil)
 	identityExpirationCheckInterval = time.Second
 }
@@ -359,6 +359,7 @@ func TestPull(t *testing.T) {
 }
 
 func TestConnectToAnchorPeers(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 	// Scenario: spawn 10 peers, and have them join a channel
 	// of 3 anchor peers that don't exist yet.