* configure.ac: Remove WindwosCE support.
* contrib/: Remove all; it was only used for WindowsCE.
* src/w32-ce.c, src/w32-ce.h: Remove files.
* src/Makefile.am (system_components): Remove these files.
* src/ath.c, src/ath.h: Remove W32CE support.
* src/data-compat.c (gpgme_data_new_from_filepart): Ditto.
(gpgme_data_new_from_file): Ditto.
* src/debug.c (debug_init, _gpgme_debug): Ditto.
* src/gpgme-tool.c (gpgme_server): Ditto.
(main): Ditto.
* src/priv-io.h: Do not include w32-ce.h.
* src/util.h: Remove WindowsCE support.
* src/w32-io.c: Ditto.
* src/w32-util.c: Ditto.
* src/debug.h (TRACE_SUC4): New.