don't skip mariadb concurrent test

Author: methane

driver_test.go

@@ -1839,13 +1839,13 @@ func TestConcurrent(t *testing.T) {
 	}
 
 	runTests(t, dsn, func(dbt *DBTest) {
-		var version string
-		if err := dbt.db.QueryRow("SELECT @@version").Scan(&version); err != nil {
-			dbt.Fatalf("%s", err.Error())
-		}
-		if strings.Contains(strings.ToLower(version), "mariadb") {
-			t.Skip(`TODO: "fix commands out of sync. Did you run multiple statements at once?" on MariaDB`)
-		}
+		// var version string
+		// if err := dbt.db.QueryRow("SELECT @@version").Scan(&version); err != nil {
+		// 	dbt.Fatal(err)
+		// }
+		// if strings.Contains(strings.ToLower(version), "mariadb") {
+		// 	t.Skip(`TODO: "fix commands out of sync. Did you run multiple statements at once?" on MariaDB`)
+		// }
 
 		var max int
 		err := dbt.db.QueryRow("SELECT @@max_connections").Scan(&max)