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
Following local files:
VS 2010 user specific settings (*.vcxproj.user )
VS 2012+ solution user options (*.suo)
should be ignored in commits by default.
Closes#16920.
