[GStreamer] Bump internal jhbuild versions to 1.4.4
https://bugs.webkit.org/show_bug.cgi?id=138866

Reviewed by Carlos Garcia Campos.

* gtk/jhbuild.modules:
* gtk/patches/gst-events-arent-gstobjects.patch: Removed.
* gtk/patches/gst-plugins-base-fix-build-gcc-4.9-x86.patch: Removed.
* gtk/patches/gst-prevent-neon-check-in-configure-from-passing-under-aarch64.patch: Removed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@176627 268f45cc-cd09-0410-ab3c-d52691b4dbfc