• More cleanups
• Remove llvm-glibc.patch (upstream already fixed it)
• Comment "Example" in scan.conf to make clamd@scan.service to have less to editing
• Improve description of clamav-update

Fix systemd scriptlets

• Improve upgrade path
• Get rid of pkgdatadir variable
• Use upstream freshclam systemd unit file, remove freshclam-sleep
• Get rid of %freshclamlog variable
• Get rid of smartsubst function

- Fix scriplets (#1788338)

- Delete unused files

- Remove old init scripts and use only systemd

- Still need some work at least add freshclam unit

- Allow building --with unrar again (bz#1782638)