### _Why are the changes needed?_
Remove improper docs saving dataframe for pyspark, as hive-like JDBC driver not supporting `addBatch` method which is required by Spark JDBC datasource in `JDBCUtils`.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [ ] [Run test](https://kyuubi.apache.org/docs/latest/develop_tools/testing.html#running-tests) locally before make a pull request
Closes#4133 from bowenliang123/pyspark-remove-doc.
Closes#4133
45c9aa7f [liangbowen] remove improper docs saving dataframe for pyspark,as hive like JDBC driver not supporting `addBatch` which is reuqired by Spark JDBC datasource in `JDBCUtils`
Authored-by: liangbowen <liangbowen@gf.com.cn>
Signed-off-by: Cheng Pan <chengpan@apache.org>
5ff98f28f3