Don't send a MODE request when JOINing

Since commit 1a1cc4c756, we'd always send a "MODE #chan" to IRC when we
received a "JOIN #chan". It used to work before that commit, because the mode
reply which is automatically sent on join is sent before the "end of /names"
numeric.

This just removes that MODE request. Proper IRC server should always send a MODE
reply on channel join.

Thanks to nyuszika7h`` for the report.

Signed-off-by: Uli Schlachter <psychon@znc.in>

IRCSock.cpp

@@ -444,8 +444,6 @@ void CIRCSock::ReadLine(const CString& sData) {
 					pChan->ResetJoinTries();
 					pChan->Enable();
 					pChan->SetIsOn(true);
-					PutIRC("MODE " + pChan->GetName());
-
 				}
 			} else {
 				pChan = m_pUser->FindChan(sChan);