dav-server: drop lru 0.16 to 0.12 downgrade from relax-deps.patch
Edit to the existing relax-deps.patch removing the hunk that downgraded lru from "0.16.0" to "0.12.0".
Part of the rust-lru 0.12 to 0.16 transition (bug #1117785).
Edited by Juan Manuel Méndez Rey