Bug#1123935: subunit: dependency cycle with check

[Bastian Germann]

Source: subunit
Version: 1.4.4+1-1
Severity: important

subunit and check build-depend on each other, which is a bootstrap
problem (currently for loong64). Please remove Build-Depends: check at
least temporarily to break the dependency cycle. I think not running
these test is preferrable to disabling subunit support in check.