Replace check for integration tests. (#110707)

* Replace check for integration tests.
* Revert changes in pkg/tsdb/mysql packages.
* Fix formatting of few tests.

pkg/plugins/manager/client/client_test.go

@@ -11,6 +11,7 @@ import (
 	"github.com/grafana/grafana/pkg/plugins"
 	"github.com/grafana/grafana/pkg/plugins/backendplugin"
 	"github.com/grafana/grafana/pkg/plugins/manager/fakes"
+	"github.com/grafana/grafana/pkg/util/testutil"
 	"github.com/stretchr/testify/require"
 )
 
@@ -157,9 +158,8 @@ func TestCheckHealth(t *testing.T) {
 }
 
 func TestIntegrationCallResource(t *testing.T) {
-	if testing.Short() {
-		t.Skip("skipping integration test in short mode")
-	}
+	testutil.SkipIntegrationTestInShortMode(t)
+
 	registry := fakes.NewFakePluginRegistry()
 	p := &plugins.Plugin{
 		JSONData: plugins.JSONData{