Remove table from table.whitelist does not work after add new table to table.whitelist [DBZ-1195]

Migrated from [DBZ-1195](https://issues.redhat.com/browse/DBZ-1195)

Hello, I have a problem when remove the new table or any table from table_whitelist of connector after I changed (add a new table) to table.whitelist, it does not work!

I attached debug from the line, I saw it always using the old value of table_whitelist from connector offset:

https://github.com/debezium/debezium/blob/9b405aa84d8391a7ccf883184d6e8c67bac8bed3/debezium-connector-mysql/src/main/java/io/debezium/connector/mysql/SourceInfo.java#L304

Seems the `databaseWhitelist` always use the value of connector offset at init.

Start in debezium-connector-mysql/src/main/java/io/debezium/connector/mysql/SourceInfo.java at the referenced line. Trace how databaseWhitelist is initialized from the connector offset and how table.whitelist changes are handled afterward. Confirm the behavior with the MySQL connector configuration flow; done means removing a table after adding it no longer uses the stale whitelist value.

Written by the indexing model from the issue text.