[metacity] core: drop use of volatile

[Alberts Muktupāvels <muktupavels src gnome org>]

commit b0f1eb6a47338c3d0fb67a087e2a1e12bc3bc293
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Aug 21 11:13:14 2021 +0300

    core: drop use of volatile

 src/core/meta-enum-types.c.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/core/meta-enum-types.c.in b/src/core/meta-enum-types.c.in
index 9225fc2a..51a5f9d2 100644
--- a/src/core/meta-enum-types.c.in
+++ b/src/core/meta-enum-types.c.in
@@ -12,7 +12,7 @@
 GType
 @enum_name@_get_type (void)
 {
-  static volatile gsize g_enum_type_id;
+  static gsize g_enum_type_id;
   static const G@Type@Value values[] =
     {
 /*** END value-header ***/