diff --git a/components/style/properties/cascade.rs b/components/style/properties/cascade.rs
index b64ff4c6349..e9b63fe8c72 100644
--- a/components/style/properties/cascade.rs
+++ b/components/style/properties/cascade.rs
@@ -794,12 +794,6 @@ impl<'a, 'b: 'a> Cascade<'a, 'b> {
         {
             builder.add_flags(ComputedValueFlags::HAS_AUTHOR_SPECIFIED_BORDER_BACKGROUND);
         }
-        if self
-            .author_specified
-            .contains_any(LonghandIdSet::padding_properties())
-        {
-            builder.add_flags(ComputedValueFlags::HAS_AUTHOR_SPECIFIED_PADDING);
-        }
 
         if self
             .author_specified
@@ -863,8 +857,7 @@ impl<'a, 'b: 'a> Cascade<'a, 'b> {
         //
         // Note that all the properties involved are non-inherited, so we don't
         // need to do anything else other than just copying the bits over.
-        let reset_props_bits = ComputedValueFlags::HAS_AUTHOR_SPECIFIED_BORDER_BACKGROUND |
-            ComputedValueFlags::HAS_AUTHOR_SPECIFIED_PADDING;
+        let reset_props_bits = ComputedValueFlags::HAS_AUTHOR_SPECIFIED_BORDER_BACKGROUND;
         builder.add_flags(cached_style.flags & reset_props_bits);
 
         true
diff --git a/components/style/properties/computed_value_flags.rs b/components/style/properties/computed_value_flags.rs
index 0942bbd0d13..25adc3327ca 100644
--- a/components/style/properties/computed_value_flags.rs
+++ b/components/style/properties/computed_value_flags.rs
@@ -84,12 +84,6 @@ bitflags! {
         /// https://github.com/w3c/csswg-drafts/issues/4777#issuecomment-604424845
         const HAS_AUTHOR_SPECIFIED_BORDER_BACKGROUND = 1 << 14;
 
-        /// Whether there are author-specified rules for padding-* properties.
-        ///
-        /// FIXME(emilio): Try to merge this with BORDER_BACKGROUND, see
-        /// https://github.com/w3c/csswg-drafts/issues/4777
-        const HAS_AUTHOR_SPECIFIED_PADDING = 1 << 15;
-
         /// Whether there are author-specified rules for `font-family`.
         const HAS_AUTHOR_SPECIFIED_FONT_FAMILY = 1 << 16;
 
diff --git a/components/style/properties/properties.mako.rs b/components/style/properties/properties.mako.rs
index 7d19785ea80..10b13618a94 100644
--- a/components/style/properties/properties.mako.rs
+++ b/components/style/properties/properties.mako.rs
@@ -945,18 +945,6 @@ impl LonghandIdSet {
         &HAS_NO_EFFECT_ON_SCROLLBARS
     }
 
-    /// Returns the set of padding properties for the purpose of disabling
-    /// native appearance.
-    #[inline]
-    pub fn padding_properties() -> &'static Self {
-        <% assert "padding" in logical_groups %>
-        ${static_longhand_id_set(
-            "PADDING_PROPERTIES",
-            lambda p: p.logical_group == "padding"
-        )}
-        &PADDING_PROPERTIES
-    }
-
     /// Returns the set of border properties for the purpose of disabling native
     /// appearance.
     #[inline]