Remove Windows CE support

Windows CE doesn't seem to be supported by Microsoft any longer. Last CE
release was in early 2013 and the PocketPC and Smartphone targets supported by
wxWidgets are long gone.

The build files where already removed in an earlier cleanup this commit
removes all files, every #ifdef and all documentation regarding the Windows CE
support.

Closes https://github.com/wxWidgets/wxWidgets/pull/81

src/generic/dirdlgg.cpp

@@ -91,23 +91,6 @@ bool wxGenericDirDialog::Create(wxWindow* parent,
 
     wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
 
-    // smartphones does not support or do not waste space for wxButtons
-#if defined(__SMARTPHONE__)
-
-    wxMenu *dirMenu = new wxMenu;
-    dirMenu->Append(ID_GO_HOME, _("Home"));
-
-    if (!HasFlag(wxDD_DIR_MUST_EXIST))
-    {
-        dirMenu->Append(ID_NEW, _("New directory"));
-    }
-
-    dirMenu->AppendCheckItem(ID_SHOW_HIDDEN, _("Show hidden directories"));
-    dirMenu->AppendSeparator();
-    dirMenu->Append(wxID_CANCEL, _("Cancel"));
-
-#else
-
     // 0) 'New' and 'Home' Buttons
     wxSizer* buttonsizer = new wxBoxSizer( wxHORIZONTAL );
 
@@ -138,8 +121,6 @@ bool wxGenericDirDialog::Create(wxWindow* parent,
 
     topsizer->Add( buttonsizer, 0, wxTOP | wxALIGN_RIGHT, 10 );
 
-#endif // __SMARTPHONE__/!__SMARTPHONE__
-
     // 1) dir ctrl
     m_dirCtrl = NULL; // this is necessary, event handler called from
                       // wxGenericDirCtrl would crash otherwise!
@@ -164,12 +145,10 @@ bool wxGenericDirDialog::Create(wxWindow* parent,
 
     topsizer->Add(m_dirCtrl, wxSizerFlags(flagsBorder2).Proportion(1).Expand());
 
-#ifndef __SMARTPHONE__
     // TODO: Make this an option depending on a flag?
     wxCheckBox *
         check = new wxCheckBox(this, ID_SHOW_HIDDEN, _("Show &hidden directories"));
     topsizer->Add(check, wxSizerFlags(flagsBorder2).Right());
-#endif // !__SMARTPHONE__
 
     // 2) text ctrl
     m_input = new wxTextCtrl( this, ID_TEXTCTRL, m_path, wxDefaultPosition );
@@ -182,11 +161,6 @@ bool wxGenericDirDialog::Create(wxWindow* parent,
         topsizer->Add(buttonSizer, wxSizerFlags().Expand().DoubleBorder());
     }
 
-#ifdef __SMARTPHONE__
-    // overwrite menu set by CreateSeparatedButtonSizer() call above
-    SetRightMenu(wxID_ANY, _("Options"), dirMenu);
-#endif
-
     m_input->SetFocus();
 
     SetAutoLayout( true );