diff --git a/components/style/properties/properties.mako.rs b/components/style/properties/properties.mako.rs
index 7e4d2264aed..17e74cf0cc2 100644
--- a/components/style/properties/properties.mako.rs
+++ b/components/style/properties/properties.mako.rs
@@ -1188,14 +1188,6 @@ impl CSSWideKeyword {
     }
 }
 
-#[inline]
-fn cascade_layes_enabled() -> bool {
-    #[cfg(feature = "gecko")]
-    return static_prefs::pref!("layout.css.cascade-layers.enabled");
-    #[cfg(feature = "servo")]
-    return false;
-}
-
 impl CSSWideKeyword {
     /// Parses a CSS wide keyword from a CSS identifier.
     pub fn from_ident(ident: &str) -> Result<Self, ()> {
@@ -1204,7 +1196,7 @@ impl CSSWideKeyword {
             "inherit" => CSSWideKeyword::Inherit,
             "unset" => CSSWideKeyword::Unset,
             "revert" => CSSWideKeyword::Revert,
-            "revert-layer" if cascade_layes_enabled() => CSSWideKeyword::RevertLayer,
+            "revert-layer" => CSSWideKeyword::RevertLayer,
             _ => return Err(()),
         })
     }
diff --git a/components/style/stylesheets/rule_parser.rs b/components/style/stylesheets/rule_parser.rs
index 804d0d688e2..a60cd0ea6d0 100644
--- a/components/style/stylesheets/rule_parser.rs
+++ b/components/style/stylesheets/rule_parser.rs
@@ -264,14 +264,7 @@ impl<'a, 'i> AtRuleParser<'i> for TopLevelRuleParser<'a> {
                     }).ok()
                 };
 
-                #[cfg(feature = "gecko")]
-                let layers_enabled = static_prefs::pref!("layout.css.cascade-layers.enabled");
-                #[cfg(feature = "servo")]
-                let layers_enabled = false;
-
-                let layer = if !layers_enabled {
-                    None
-                } else if input.try_parse(|input| input.expect_ident_matching("layer")).is_ok() {
+                let layer = if input.try_parse(|input| input.expect_ident_matching("layer")).is_ok() {
                     Some(ImportLayer {
                         name: None,
                     })