remove deprecated default option to avoid console.warn (#675)

```
'Property `sorting` has been deprecated, please start using `maxColumnSort` instead. #619'
```

Author: dsheng123

src/defaults/props.options.js

@@ -42,7 +42,6 @@ export default {
   searchFieldVariant: 'standard',
   selection: false,
   selectionProps: {},
-  sorting: true,
   maxColumnSort: 1,
   groupChipProps: {},
   defaultOrderByCollection: [],