build/windows: Do not bundle unneeded share/metainfo on Windows

Seems it was used at runtime in the past but that is
not the case anymore. Indeed, it started to be bundled in
af79bbe028 due to an
error: before the Windows bundling unification the
crossbuilds "script" on .yml bundled all the 'share' dir.

build/linux/appimage/3_dist-gimp-goappimage.sh

@@ -306,8 +306,6 @@ done
 bund_usr "$GIMP_PREFIX" "etc/gimp"
 
 ## Other features and plug-ins
-### Needed for welcome page
-bund_usr "$GIMP_PREFIX" "share/metainfo/*.xml"
 ### mypaint brushes
 bund_usr "$UNIX_PREFIX" "share/mypaint-data/1.0"
 ### Needed for 'th' word breaking in Text tool etc
@@ -362,6 +360,8 @@ conf_app PYTHONDONTWRITEBYTECODE "1" --no-expand
 #bund_usr "$UNIX_PREFIX" "share/lua/5.1"
 #conf_app LUA_PATH "\${APPDIR}/usr/share/lua/5.1/?.lua;\${APPDIR}/usr/share/lua/5.1/lgi/?.lua;\${APPDIR}/usr/share/lua/5.1/lgi/override/?.lua" --no-expand
 
+## Used by AppImage "centers" etc
+bund_usr "$GIMP_PREFIX" "share/metainfo/*.xml"
 ## Other binaries and deps (bundle them and do fine-tuning with bundling tool)
 bund_usr "$GIMP_PREFIX" 'bin/gimp*'
 bund_usr "$GIMP_PREFIX" "bin/gegl"

build/windows/2_bundle-gimp-uni_base.py

@@ -127,8 +127,6 @@ for lang in lang_array:
     bundle(MSYSTEM_PREFIX, f"share/locale/{lang}/LC_MESSAGES/gtk*.mo")
     # For language list in text tool options
     bundle(MSYSTEM_PREFIX, f"share/locale/{lang}/LC_MESSAGES/iso_639_3.mo")
-### Needed for welcome page
-bundle(GIMP_PREFIX, "share/metainfo/org.gimp*.xml")
 ### mypaint brushes
 bundle(MSYSTEM_PREFIX, "share/mypaint-data")
 ### Needed for full CJK and Cyrillic support in file-pdf