[TASK] Remove clearable related wrap from MFA providers

The input field of both, TOTP and recovery codes,
was wrapped into a container having `form-control`
and `form-control-clearable` classes set.

Those classes have no effect, since they belong to
the clearable functionality of TYPO3 and will be added
automatically on initialization. Since MFA does not use
this functionality, the container is removed.

Resolves: #94027
Releases: master
Change-Id: I563fd55629f002df3617306a52da20c379cfcd75
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68927


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benjamin Franzke <bfr@qbus.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Benni Mack <benni@typo3.org>