[mutter] backends-x11: Remove g_new0 overwriting g_object_new

[Jonas Ådahl <jadahl src gnome org>]

commit bad1a7fd0c13aaa1c817d3e54416e60a9e7b366d
Author: Daniel van Vugt <daniel van vugt canonical com>
Date:   Thu Jun 11 14:17:16 2020 +0800

    backends-x11: Remove g_new0 overwriting g_object_new
    
    The object starts out right, and then gets overwritten with zeroes:
    
    ```
      crtc_xrandr = g_object_new (META_TYPE_CRTC_XRANDR,
                                  "id", crtc_id,
                                  "gpu", gpu,
                                  "all-transforms", all_transforms,
                                  NULL);
    
      crtc_xrandr = g_new0 (MetaCrtcXrandr, 1);
    ```
    
    Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1296
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1306

 src/backends/x11/meta-crtc-xrandr.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/backends/x11/meta-crtc-xrandr.c b/src/backends/x11/meta-crtc-xrandr.c
index 0f17148752..b03e73c837 100644
--- a/src/backends/x11/meta-crtc-xrandr.c
+++ b/src/backends/x11/meta-crtc-xrandr.c
@@ -249,7 +249,6 @@ meta_crtc_xrandr_new (MetaGpuXrandr      *gpu_xrandr,
                               "all-transforms", all_transforms,
                               NULL);
 
-  crtc_xrandr = g_new0 (MetaCrtcXrandr, 1);
   crtc_xrandr->transform =
     meta_monitor_transform_from_xrandr (xrandr_crtc->rotation);