Remove AegisubApp::OnKeyDown

It was an odd hack to ensure that medusa mode didn't mark keydown events
as processed (resulting in EVT_CHAR never triggering), but there should
be a better way to do this when we reintroduce global timing hotkeys.

Originally committed to SVN as r5237.

aegisub/src/main.cpp

@@ -575,7 +575,6 @@ void AegisubApp::MacOpenFile(const wxString &filename) {
 // Event table
 BEGIN_EVENT_TABLE(AegisubApp,wxApp)
 	EVT_MOUSEWHEEL(AegisubApp::OnMouseWheel)
-	EVT_KEY_DOWN(AegisubApp::OnKey)
 END_EVENT_TABLE()
 
 
@@ -595,15 +594,3 @@ void AegisubApp::OnMouseWheel(wxMouseEvent &event) {
 }
 
 
-
-/// @brief Key pressed
-/// @param event wxEvent
-/// Noone has any idea what this does anymore.
-void AegisubApp::OnKey(wxKeyEvent &event) {
-	//frame->audioBox->audioDisplay->AddPendingEvent(event);
-//	if (!event.GetSkipped()) {
-//		event.Skip();
-//	}
-}
-
-

aegisub/src/main.h

@@ -93,7 +93,6 @@ private:
 	PluginManager *plugins;
 
 	void OnMouseWheel(wxMouseEvent &event);
-	void OnKey(wxKeyEvent &key);
 
 #ifdef _DEBUG
 	/// stdout log emitter