Fix rueidis startup check handling and revert mysql changes

mysql/mysql_test.go

@@ -108,18 +108,6 @@ func Test_MYSQL_New(t *testing.T) {
 	defer newConfigStore.Close()
 }
 
-func Test_MYSQL_New_DisableStartupCheck(t *testing.T) {
-	require.NotPanics(t, func() {
-		store := New(Config{
-			Host:                "127.0.0.1",
-			Port:                3308,
-			DisableStartupCheck: true,
-		})
-		require.NotNil(t, store)
-		defer store.Close()
-	})
-}
-
 func Test_MYSQL_GC(t *testing.T) {
 	testVal := []byte("doe")