patch 7.4.1182

Problem:    Still socket code intertwined with netbeans.
Solution:   Move code from netbeans.c to channel.c

src/gui_w48.c

@@ -1779,9 +1779,10 @@ process_message(void)
     }
 #endif
 
-#ifdef FEAT_NETBEANS_INTG
+#ifdef FEAT_CHANNEL
     if (msg.message == WM_NETBEANS)
     {
+	/* TODO: channel_read(idx) */
 	netbeans_read();
 	return;
     }