Bug 1842474 - Remove layout.css.accent-color.enabled pref r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D184009

layout/style/test/mochitest.ini

@@ -8,7 +8,6 @@ prefs =
   dom.animations.mainthread-synchronization-with-geometric-animations=true
   gfx.omta.background-color=true
   gfx.font_loader.delay=0
-  layout.css.accent-color.enabled=true
   layout.css.container-queries.enabled=true
   layout.css.individual-transform.enabled=true
   layout.css.motion-path.enabled=true

modules/libpref/init/StaticPrefList.yaml

@@ -8214,13 +8214,6 @@
   mirror: always
   rust: true
 
-# Whether the `accent-color` css property is enabled.
-- name: layout.css.accent-color.enabled
-  type: RelaxedAtomicBool
-  value: true
-  mirror: always
-  rust: true
-
 # Whether the `color-scheme` css property and meta tags are enabled.
 - name: layout.css.color-scheme.enabled
   type: RelaxedAtomicBool

servo/components/style/properties/longhands/inherited_ui.mako.rs

@@ -87,7 +87,6 @@ ${helpers.predefined_type(
     "generics::color::ColorOrAuto::Auto",
     engines="gecko",
     spec="https://drafts.csswg.org/css-ui-4/#widget-accent",
-    gecko_pref="layout.css.accent-color.enabled",
     animation_value_type="ColorOrAuto",
     ignored_when_colors_disabled=True,
     has_effect_on_gecko_scrollbars=False,

testing/web-platform/meta/css/css-ui/__dir__.ini

@@ -1 +0,0 @@
-prefs: [layout.css.accent-color.enabled:true]