Proguard breaks ical4j

[sunkup]

This issue is for tracking the changes made in #383 which we might be able to undo again.

There are unused (commented out) imports in ical4j which required us to add some proguard rules. We could report it or submit a PR that deletes these comment lines and undo #383

Originally posted by @rfc2822 in #383 (comment)

Depends on ical4j/ical4j#717

[github-actions]

This PR/issue depends on:

• Proguard breaks ical4j ical4j/ical4j#717

[ArnyminerZ]

I've posted it on ical4j/ical4j#717, feel free to improve it if necessary. I don't know how to explain it better 😅

[sunkup]

I've posted it on ical4j/ical4j#717, feel free to improve it if necessary. I don't know how to explain it better 😅

Nahr, sounds good. Thanks for creating it!