python: Fix removing the TOFU database.
* lang/python/Makefile.am (CLEANFILES): Move 'tofu.db'... * lang/python/tests/Makefile.am (CLEANFILES): ... here.
- Fixes-commit: 9b22f82afc5518961e4bea1fc516b79800e379a2
- Signed-off-by: Justus Winter <justus@g10code.com>