Backed out changeset 048a2ebdfcb0 (bug 1666086) for causing bustages at Result.h. CLOSED TREE

modules/libpref/init/StaticPrefList.yaml

@@ -5806,7 +5806,7 @@
 # Whether :-moz-any is an alias of the :is selector.
 - name: layout.css.moz-any-is-is.enabled
   type: RelaxedAtomicBool
-  value: true
+  value: @IS_EARLY_BETA_OR_EARLIER@
   mirror: always
   rust: true