Remove Unified Consent preferences from incognito whitelist.

Preferences related to unified consent are removed from the persistent
storage list for incognito mode.
After this CL, if these preferences are changed from incognito mode,
they are only stored in memory and won't affect user profile.

Bug: 861722
Change-Id: I733657f359b34369fcef0559660cd14c74bfb181
Reviewed-on: https://chromium-review.googlesource.com/1172131Reviewed-by: Thomas Tangl <tangltom@chromium.org>
Commit-Queue: Ramin Halavati <rhalavati@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582573}

chrome/browser/prefs/pref_service_incognito_whitelist.cc

@@ -28,7 +28,6 @@
 #include "components/startup_metric_utils/browser/pref_names.h"
 #include "components/suggestions/suggestions_pref_names.h"
 #include "components/ukm/ukm_pref_names.h"
-#include "components/unified_consent/pref_names.h"
 #include "components/variations/pref_names.h"
 #include "components/web_resource/web_resource_pref_names.h"
 #include "services/preferences/public/cpp/tracked/pref_names.h"
@@ -821,11 +820,6 @@ const char* temporary_incognito_whitelist[] = {
     suggestions::prefs::kSuggestionsBlacklist,
     suggestions::prefs::kSuggestionsData,
 
-    // components/unified_consent/pref_names.h
-    unified_consent::prefs::kUnifiedConsentGiven,
-    unified_consent::prefs::kUnifiedConsentMigrationState,
-    unified_consent::prefs::kUrlKeyedAnonymizedDataCollectionEnabled,
-
     // components/web_resource/web_resource_pref_names.h
     prefs::kEulaAccepted,