tests: fix mock_saved_search_service! calls (fixup 4e4c4d627)

test/functional/saved_searches_controller_test.rb

@@ -7,7 +7,6 @@ class SavedSearchesControllerTest < ActionDispatch::IntegrationTest
       as_user do
         @saved_search = create(:saved_search, user: @user)
       end
-      mock_saved_search_service!
     end
 
     context "index action" do

test/unit/post_test.rb

@@ -23,7 +23,6 @@ class PostTest < ActiveSupport::TestCase
     end
     CurrentUser.user = @user
     CurrentUser.ip_addr = "127.0.0.1"
-    mock_saved_search_service!
     mock_pool_archive_service!
   end
 

test/unit/tag_alias_test.rb

@@ -10,7 +10,6 @@ class TagAliasTest < ActiveSupport::TestCase
         CurrentUser.user = user
       end
       CurrentUser.ip_addr = "127.0.0.1"
-      mock_saved_search_service!
     end
 
     teardown do