Lintian tag information: unused-override (type: information)

Description (from lintian-explain-tags)

Your package specifies the named override but there were no tags that
could have been silenced by it.

Maybe you fixed an underlying condition but forgot to remove the override.
It is also possible that the Lintian maintainers fixed a false positive.

If the override is now unused, please remove it.

This tag is similar to mismatched-override except there a tag could have
been silenced if the context had matched.

Sometimes, overrides end up not being used because a tag appears only on
some architectures. In that case, overrides can be equipped with an
architecture qualifier.

Please refer to Architecture specific overrides (Section 2.4.3) in the
Lintian User's Manual for details.

Visibility: info
Show-Always: yes
Check: lintian

Show affected packages