Clean unused sync options

[frostming]

Closes #2010

pipenv update --dry-run will also output not installed packages, as what's done in non dry-run mode. Here is what it produces:

$ pipenv sync --dry-run
Package 'requests' out–of–date: '==2.14.0' installed, '==2.18.4' available.
Package 'chardet==3.0.4' is not installed.
Package 'urllib3==1.22' is not installed.
Package 'idna==2.6' is not installed.
Package 'certifi==2018.4.16' is not installed.

[frostming]

Does anyone know how to figure out what happened in the buildkite testing? I just got a 404.

[techalchemy]

Sorry for the delay, we had some permissions issues -- I can give you an update on this once tests run again

[kennethreitz]

[kennethreitz]

this looks like a drastic change to our api, and i don't think it's what we want. i'd have to review more carefully — maintainers, feel free to re-open if needed.

[frostming]

That's fine. BTW, the test failure is caused by en dash in "out–of–date". I don't know whether it is more proper for en dash instead of hyphen in this case, just to throw it out to avoid similar failures in the future.

[uranusjr]

“out-of-date” should most definitely use hyphens, not en dashes. This is a grammatical fact, not a technical choice to prevent errors.