Revert of Migrate external protocol prefs from local state to profiles

chrome/browser/chrome_site_per_process_browsertest.cc

Index: chrome/browser/chrome_site_per_process_browsertest.cc
diff --git a/chrome/browser/chrome_site_per_process_browsertest.cc b/chrome/browser/chrome_site_per_process_browsertest.cc
index 8e161e6b6724972b663042067ef9d0ee6855fbbe..74de684f24c5226c8aeb293abd453272a949d5fc 100644
--- a/chrome/browser/chrome_site_per_process_browsertest.cc
+++ b/chrome/browser/chrome_site_per_process_browsertest.cc
@@ -391,8 +391,8 @@
                                                               protocol);
   }
 
-  ExternalProtocolHandler::BlockState GetBlockState(const std::string& scheme,
-                                                    Profile* profile) override {
+  ExternalProtocolHandler::BlockState GetBlockState(
+      const std::string& scheme) override {
     return ExternalProtocolHandler::DONT_BLOCK;
   }