gdk-pixbuf: remove a test that sporadically fails without reproducibility

The test is randomly modifying file data and some of these random
modifications cause OOM failures. There is no way to preserve and repeat
what was modified, so the test needs to re-engineered to do
proper fuzzing.

See here for details:
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/146

(From OE-Core rev: 732a9c83e946580607af3478cdc765d6541e3f64)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-gnome/gdk-pixbuf/gdk-pixbuf_2.40.0.bb

@@ -99,6 +99,11 @@ do_install_append() {
 
 }
 
+# Remove a bad fuzzing attempt that sporadically fails without a way to reproduce
+do_install_ptest() {
+	rm ${D}/${datadir}/installed-tests/gdk-pixbuf/pixbuf-randomly-modified.test
+}
+
 do_install_append_class-native() {
 	find ${D}${libdir} -name "libpixbufloader-*.la" -exec rm \{\} \;