Link: Fix menu not refreshing correctly

Start Network Link is not allowed while Local mode is selected, but
state change of Local mode was ignored until an option which triggers
EnableNetworkMenu() was selected.

Removed EnableNetworkMenu() from the Configuration option because it
doesn't change anything related to Link menu state.

src/wx/cmdevents.cpp

@@ -2630,6 +2630,7 @@ EVT_HANDLER(LinkProto, "Local host IPC")
 {
 #ifndef NO_LINK
     GetMenuOptionConfig("LinkProto", config::OptionID::kGBALinkProto);
+    EnableNetworkMenu();
 #endif
 }
 
@@ -2643,7 +2644,6 @@ EVT_HANDLER(LinkConfigure, "Link options...")
 
     SetLinkTimeout(gopts.link_timeout);
     update_opts();
-    EnableNetworkMenu();
 #endif
 }