qt: Make sure to remove the tofu.db on clean.
qt: Make sure to remove the tofu.db on clean.

* lang/qt/tests/Makefile.am (CLEANFILES): Add 'tofu.db'.

Signed-off-by: Justus Winter <4d1bd7a5ca1cd26bee0df05b6801a6ce9a22196e@g10code.com>

gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme