net: remove unreachable check in internalConnect

Checked all call-sites to ensure that this code is truly unreachable.
addressType is always checked before internalConnect is even called.
PR-URL: #24158
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Author: pipobscure

lib/net.js

@@ -830,12 +830,9 @@ function internalConnect(
 if(addressType===4){
 localAddress=localAddress||'0.0.0.0';
 err=self._handle.bind(localAddress,localPort);
-}elseif(addressType===6){
+}else{// addressType === 6
 localAddress=localAddress||'::';
 err=self._handle.bind6(localAddress,localPort);
-}else{
-self.destroy(newERR_INVALID_ADDRESS_FAMILY(addressType));
-return;
 }
 debug('binding to localAddress: %s and localPort: %d (addressType: %d)',
 localAddress,localPort,addressType);