Bug 1821955 part 6: Remove the CtW pref. r=eeejay,settings-reviewers,taskgraph-reviewers,bhearsum,Gijs

Differential Revision: https://phabricator.services.mozilla.com/D177723

modules/libpref/init/StaticPrefList.yaml

@@ -226,13 +226,6 @@
 #endif
   mirror: always
 
-# Whether to cache the entire accessibility trees of all content processes in
-# the parent process.
-- name: accessibility.cache.enabled
-  type: bool
-  value: true
-  mirror: once
-
 # Whether to avoid accessibility activation on Windows shortly after clipboard
 # copy.
 #

toolkit/components/featuregates/Features.toml

@@ -91,13 +91,3 @@ type = "boolean"
 bug-numbers = [1673971]
 is-public = true
 default-value = false
-
-[accessibility-cache]
-title = "experimental-features-accessibility-cache"
-description = "experimental-features-accessibility-cache-description"
-restart-required = true
-preference = "accessibility.cache.enabled"
-type = "boolean"
-bug-numbers = [1694563]
-is-public = {default = false, nightly = true}
-default-value = true

toolkit/components/nimbus/FeatureManifest.yaml

@@ -1251,17 +1251,6 @@ etpLevel2PBMPref:
       type: boolean
       setPref: "privacy.annotate_channels.strict_list.pbmode.enabled"
 
-accessibilityCache:
-  description: Caches all accessibility information from all documents in the Firefox main process.
-  owner: jteh@mozilla.com
-  hasExposure: false
-  isEarlyStartup: true
-  variables:
-    enabled:
-      description: Whether to enable the accessibility cache.
-      type: boolean
-      setPref: accessibility.cache.enabled
-
 fxaButtonVisibility:
   description: Prefs to control the visibility of the Firefox Accounts toolbar button when not signed in.
   owner: mconley@mozilla.com

toolkit/locales/en-US/toolkit/featuregates/features.ftl

@@ -56,7 +56,3 @@ experimental-features-js-warp-description = Enable Warp, a project to improve Ja
 experimental-features-ime-search =
     .label = Address Bar: show results during IME composition
 experimental-features-ime-search-description = An IME (Input Method Editor) is a tool that allows you to enter complex symbols, such as those used in East Asian or Indic written languages, using a standard keyboard. Enabling this experiment will keep the address bar panel open, showing search results and suggestions, while using IME to input text. Note that the IME might display a panel that covers the address bar results, therefore this preference is only suggested for IME not using this type of panel.
-
-experimental-features-accessibility-cache =
-    .label = Accessibility cache
-experimental-features-accessibility-cache-description = Caches all accessibility information from all documents in the { -brand-short-name } main process. This improves performance for screen readers and other applications which use accessibility APIs.