[msitools] wxi: remove mingw wxi that are no longer in rawhide

[Marc-André Lureau <malureau src gnome org>]

commit ffffb9d89801d7119102b9f455c7474522da42ac
Author: Marc-André Lureau <marcandre lureau redhat com>
Date:   Tue Aug 4 19:50:39 2020 +0400

    wxi: remove mingw wxi that are no longer in rawhide

 data/meson.build                         |   3 -
 data/wixl/gstreamer-plugins-bad-free.wxi | 359 -------------------------------
 data/wixl/gstreamer-plugins-good.wxi     | 347 -----------------------------
 data/wixl/pthreads.wxi                   |  21 --
 4 files changed, 730 deletions(-)
---
diff --git a/data/meson.build b/data/meson.build
index a9bbcae..8fec5c1 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -22,9 +22,7 @@ wxi_data = files(
   'wixl/gmp.wxi',
   'wixl/gnutls.wxi',
   'wixl/gsm.wxi',
-  'wixl/gstreamer-plugins-bad-free.wxi',
   'wixl/gstreamer-plugins-base.wxi',
-  'wixl/gstreamer-plugins-good.wxi',
   'wixl/gstreamer.wxi',
   'wixl/gstreamer1-plugins-bad-free.wxi',
   'wixl/gstreamer1-plugins-base.wxi',
@@ -71,7 +69,6 @@ wxi_data = files(
   'wixl/pcre.wxi',
   'wixl/pixman.wxi',
   'wixl/portablexdr.wxi',
-  'wixl/pthreads.wxi',
   'wixl/readline.wxi',
   'wixl/rest.wxi',
   'wixl/speex.wxi',