Remove wx/stattext.h from headers

src/export/ExportFFmpegDialogs.cpp

@@ -53,6 +53,8 @@
 #include <wx/spinctrl.h>
 #include <wx/combobox.h>
 #include <wx/listimpl.cpp>
+#include <wx/stattext.h>
+
 #include <FileDialog.h>
 
 #include "../FileFormats.h"

src/export/ExportFFmpegDialogs.h

@@ -28,6 +28,7 @@ LRN
 class wxArrayStringEx;
 
 class wxArrayString;
+class wxStaticText;
 
 /// Identifiers for pre-set export types.
 enum FFmpegExposedFormat

src/export/ExportMultiple.h

@@ -23,6 +23,7 @@ class wxButton;
 class wxCheckBox;
 class wxChoice;
 class wxRadioButton;
+class wxStaticText;
 class wxTextCtrl;
 
 class AudacityProject;