Fix pip-compile --no-annotate
Fix pip-compile --no-annotate

Commit afb3db6 (Exclude packages required only by unsafe packages) broke
"pip-compile --no-annotate" because it always needs reverse
dependencies, but they're not always calculated.  Make pip-compile
always compile the reverse dependencies to fix this.

suutari/prequ,suutari/prequ,suutari-ai/prequ