Revert of Inline sign in extracts gaia id from HTTP header and seeds account tracker

components/signin/core/browser/account_tracker_service.cc

Index: components/signin/core/browser/account_tracker_service.cc
diff --git a/components/signin/core/browser/account_tracker_service.cc b/components/signin/core/browser/account_tracker_service.cc
index 0b13386df96ccc9d849cb95c6e2e3cd0b564ef6b..714c452566dcc18180003a1669c087485f24b907 100644
--- a/components/signin/core/browser/account_tracker_service.cc
+++ b/components/signin/core/browser/account_tracker_service.cc
@@ -5,7 +5,6 @@
 #include "components/signin/core/browser/account_tracker_service.h"
 
 #include "base/debug/trace_event.h"
-#include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/profiler/scoped_profile.h"
@@ -449,42 +448,3 @@
     OnRefreshTokenAvailable(*it);
   }
 }
-
-std::string AccountTrackerService::PickAccountIdForAccount(
-    const std::string& gaia,
-    const std::string& email) {
-  return PickAccountIdForAccount(pref_service_, gaia, email);
-}
-
-// static
-std::string AccountTrackerService::PickAccountIdForAccount(
-    PrefService* pref_service,
-    const std::string& gaia,
-    const std::string& email) {
-  DCHECK(!gaia.empty());
-  DCHECK(!email.empty());
-  switch(GetMigrationState(pref_service)) {
-    case MIGRATION_NOT_STARTED:
-    case MIGRATION_IN_PROGRESS:
-      return gaia::CanonicalizeEmail(gaia::SanitizeEmail(email));
-    case MIGRATION_DONE:
-      return gaia;
-    default:
-      NOTREACHED();
-      return email;
-  }
-}
-
-void AccountTrackerService::SeedAccountInfo(const std::string& gaia,
-                                            const std::string& email) {
-  DCHECK(!gaia.empty());
-  DCHECK(!email.empty());
-  const std::string account_id = PickAccountIdForAccount(gaia, email);
-  const bool already_exists = ContainsKey(accounts_, account_id);
-  StartTrackingAccount(account_id);
-  AccountState& state = accounts_[account_id];
-  DCHECK(!already_exists || state.info.gaia == gaia);
-  state.info.gaia = gaia;
-  state.info.email = email;
-  SaveToPrefs(state);
-}