Merge "Revert "libgui: Make bq_gl_fence_cleanup a bugfix flag"" into main

Author: Jim Shargo

libs/gui/libgui_flags.aconfig

@@ -130,9 +130,6 @@ flag {
   description: "Remove BufferQueueProducer::dequeue's wait on this fence (or the fence entirely) to prevent deadlocks"
   bug: "339705065"
   is_fixed_read_only: true
-  metadata {
-    purpose: PURPOSE_BUGFIX
-  }
 } # bq_gl_fence_cleanup
 
 flag {