Backed out 2 changesets (bug 1715300) for causing devtool and wpt failures.

Backed out changeset 29c787c733cf (bug 1715300)
Backed out changeset 435ccebf197a (bug 1715300)

dom/tests/browser/browser_bug1685807.js

@@ -14,13 +14,7 @@ const TEST_URI =
 
 add_task(async function setup() {
   await SpecialPowers.pushPrefEnv({
-    set: [
-      ["privacy.window.name.update.enabled", true],
-      // https://bugzilla.mozilla.org/show_bug.cgi?id=1711544
-      // Disable bfcache for Fission for now.
-      // If Fission is disabled, the pref is no-op.
-      ["fission.bfcacheInParent", false],
-    ],
+    set: [["privacy.window.name.update.enabled", true]],
   });
 });
 

modules/libpref/init/StaticPrefList.yaml

@@ -4007,12 +4007,7 @@
 # If session history is stored in the parent process, enable bfcache for it.
 - name: fission.bfcacheInParent
   type: bool
-#if defined(MOZ_WIDGET_ANDROID)
-  # Disabled for now because of a test failure in AccessibilityTest.kt
   value: false
-#else
-  value: true
-#endif
   mirror: always
   do_not_use_directly: true
 

netwerk/test/browser/browser_post_auth.js

@@ -22,15 +22,6 @@ const FOLDER = getRootDirectory(gTestPath).replace(
   "http://mochi.test:8888/"
 );
 
-add_task(async function setup() {
-  await SpecialPowers.pushPrefEnv({
-    // https://bugzilla.mozilla.org/show_bug.cgi?id=1711676
-    // Disable bfcache for Fission for now.
-    // If Fission is disabled, the pref is no-op.
-    set: [["fission.bfcacheInParent", false]],
-  });
-});
-
 add_task(async function() {
   let tab = await BrowserTestUtils.openNewForegroundTab(
     gBrowser,