Migrate Channel.AnalyticsTypeCount to Sync by default (#11097)

* Migrate Channel.AnalyticsTypeCount to Sync by default

* Fixing tests

app/helper_test.go

@@ -488,9 +488,9 @@ func (me *TestHelper) CheckTeamCount(t *testing.T, expected int64) {
 }
 
 func (me *TestHelper) CheckChannelsCount(t *testing.T, expected int64) {
-	if r := <-me.App.Srv.Store.Channel().AnalyticsTypeCount("", model.CHANNEL_OPEN); r.Err == nil {
-		if r.Data.(int64) != expected {
-			t.Fatalf("Unexpected number of channels. Expected: %v, found: %v", expected, r.Data.(int64))
+	if count, err := me.App.Srv.Store.Channel().AnalyticsTypeCount("", model.CHANNEL_OPEN); err == nil {
+		if count != expected {
+			t.Fatalf("Unexpected number of channels. Expected: %v, found: %v", expected, count)
 		}
 	} else {
 		t.Fatalf("Failed to get channel count.")