[gobject-introspection] ci: don't install glib for msys2

[Christoph Reiter <creiter src gnome org>]

commit 047294d712f630dbbef2bf4b0e802a962c566bc7
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Sat Jun 23 17:18:24 2018 +0200

    ci: don't install glib for msys2
    
    Since GI master most times depends on an unstable glib release we
    need to pull it in as a subproject anyway. Not installing a system glib
    makes sure we don't depend on it by accident.

 .gitlab-ci/test-msys2.sh | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/.gitlab-ci/test-msys2.sh b/.gitlab-ci/test-msys2.sh
index 707313f9..ad3402b4 100644
--- a/.gitlab-ci/test-msys2.sh
+++ b/.gitlab-ci/test-msys2.sh
@@ -19,7 +19,6 @@ pacman --noconfirm -S --needed \
     mingw-w64-$MSYS2_ARCH-meson \
     mingw-w64-$MSYS2_ARCH-python3 \
     mingw-w64-$MSYS2_ARCH-libffi \
-    mingw-w64-$MSYS2_ARCH-glib2 \
     mingw-w64-$MSYS2_ARCH-pkg-config \
     mingw-w64-$MSYS2_ARCH-cairo \
     mingw-w64-$MSYS2_ARCH-pcre \