Moving diagnostics into a service (#14832)

* Moving diagnostics into a service

* Fixing golint checks

* Fixing tests

* Renaming from diagnostics to telemetry

* Adding missing files

* Initializing telemetry earlier in the server startup

* Fixing tests

* Adding a log for the telemetryID initialization error

* Addressing PR review comments

* Fixing merge problem

* Removing some extra Diagnostics mentions

* Making tests pass

app/helper_test.go

@@ -167,17 +167,6 @@ func SetupEnterpriseWithStoreMock(tb testing.TB) *TestHelper {
 	return th
 }
 
-func SetupWithCustomConfig(tb testing.TB, configSet func(*model.Config)) *TestHelper {
-	if testing.Short() {
-		tb.SkipNow()
-	}
-	dbStore := mainHelper.GetStore()
-	dbStore.DropAllTables()
-	dbStore.MarkSystemRanUnitTests()
-
-	return setupTestHelper(dbStore, false, true, tb, configSet)
-}
-
 var initBasicOnce sync.Once
 var userCache struct {
 	SystemAdminUser *model.User
@@ -583,7 +572,7 @@ func (me *TestHelper) ResetRoleMigration() {
 
 	mainHelper.GetClusterInterface().SendClearRoleCacheMessage()
 
-	if _, err := sqlSupplier.GetMaster().Exec("DELETE from Systems where Name = :Name", map[string]interface{}{"Name": ADVANCED_PERMISSIONS_MIGRATION_KEY}); err != nil {
+	if _, err := sqlSupplier.GetMaster().Exec("DELETE from Systems where Name = :Name", map[string]interface{}{"Name": model.ADVANCED_PERMISSIONS_MIGRATION_KEY}); err != nil {
 		panic(err)
 	}
 }