wlroots{0.15,0.16}: remove package

[tranzystorekk]

Testing the changes

• I tested the changes in this PR: N/A

cc @yoshiyoshyosh hikari is the last package holding back wlroots0.15 removal, do you have any objections as maintainer?

[ahesford]

Hikari hasn't been touched upstream in a long time, and is the last package stuck on a very old version of wlroots. Even if there is still utility in hikari, we should move this out of Void packaging.

[yoshiyoshyosh]

cc @yoshiyoshyosh hikari is the last package holding back wlroots0.15 removal, do you have any objections as maintainer?

@tranzystorekk I don't have any objections. Several months ago I was trying to upgrade hikari to wlroots 0.16, which seemed to be the biggest roadblock to upgrading it further, but given how xdg-shell stuff caused rendering issues after following all of the changelog changes, and that I am not really interested in knowing half of the wayland protocol just to upgrade the program, /and/ the fact that I am not even using wayland on the machine I had hikari on anymore... yeah. maybe in the future I'll take another stab at it, but for now it's best to remove it

there seems to be another fork that tried to do the same thing if anyone else is interested as well