Revert "Fix database schema for mssql"

[wbloszyk]

This reverts commit 331446b

Subject

I am targetting this branch, because this is a bugfix.

Closes #1163.

Changelog

### Removed
- Remove support for mssql database
### Fixed
- Fix mysql database schema

[jordisala1991]

Maybe the changelog should be handled different, wdyt @greg0ire ?

[VincentLanglet]

For this one, a release was made with the changelog

Fixed
fixed sql to work with mssql

So we need to add in the changelog of the release that we fix the issue AND we remove the support added.
For other PRs, since no release was made, we just have to no add any changelog for both the fix and the revert.

[wbloszyk]

ClassificationBundle and PageBundle should have changelog.

[jordisala1991]

Thank you @wbloszyk

[wbloszyk]

@greg0ire Can you release this.