common: remove a gcc 4.6 hack

Not supported anymore

common/src/Utilities/wxHelpers.cpp

@@ -19,17 +19,7 @@
 #include "Threading.h"
 #include "IniInterface.h"
 
-#ifdef __linux__
-// I do not know if it is a GCC issue or a bug in wxwidget !
-// Anyway the code isn't used (m_hasContextHelp always false) so I remove
-// it for linux. The 'vtable' issue appears with the include of
-// <wx/cshelp.h> -- Gregory
-#define GCC_4_6_LTO_COMPILATION_ISSUE
-#endif
-
-#ifndef GCC_4_6_LTO_COMPILATION_ISSUE
 #include <wx/cshelp.h>
-#endif
 #include <wx/tooltip.h>
 #include <wx/spinctrl.h>
 
@@ -161,10 +151,8 @@ void wxDialogWithHelpers::Init(const pxDialogCreationFlags &cflags)
 
     m_extraButtonSizer = NULL;
 
-#ifndef GCC_4_6_LTO_COMPILATION_ISSUE
     if (m_hasContextHelp)
         delete wxHelpProvider::Set(new wxSimpleHelpProvider());
-#endif
 
     Bind(pxEvt_OnDialogCreated, &wxDialogWithHelpers::OnDialogCreated, this);
 
@@ -328,7 +316,6 @@ void wxDialogWithHelpers::AddOkCancel(wxSizer &sizer, bool hasApply)
 
     m_extraButtonSizer = new wxBoxSizer(wxHORIZONTAL);
 
-#ifndef GCC_4_6_LTO_COMPILATION_ISSUE
     // Add the context-sensitive help button on the caption for the platforms
     // which support it (currently MSW only)
     if (m_hasContextHelp) {
@@ -337,7 +324,6 @@ void wxDialogWithHelpers::AddOkCancel(wxSizer &sizer, bool hasApply)
         *m_extraButtonSizer += new wxContextHelpButton(this) | StdButton();
 #endif
     }
-#endif
 
     // create a sizer to hold the help and ok/cancel buttons, for platforms
     // that need a custom help icon.  [fixme: help icon prolly better off somewhere else]