mark all local variables as static

Source/Core/DolphinWX/ARCodeAddEdit.cpp

@@ -25,12 +25,11 @@
 #include "Core/ActionReplay.h"
 #include "Core/ARDecrypt.h"
 #include "DolphinWX/ARCodeAddEdit.h"
+#include "DolphinWX/ISOProperties.h"
 #include "DolphinWX/WxUtils.h"
 
 class wxWindow;
 
-extern std::vector<ActionReplay::ARCode> arCodes;
-
 BEGIN_EVENT_TABLE(CARCodeAddEdit, wxDialog)
 	EVT_BUTTON(wxID_OK, CARCodeAddEdit::SaveCheatData)
 	EVT_SPIN(ID_ENTRY_SELECT, CARCodeAddEdit::ChangeEntry)