Reduce systemd service dependencies

Since `/etc/keyd/` `/usr/bin/` etc. are root filesystems and are already available,
the following are not required:

	Requires=local-fs.target
	After=local-fs.target

In addition, make the unit a dependency of multi-user.target instead of
sysinit.target:

	WantedBy=sysinit.target

keyd.service.in

@@ -1,11 +1,9 @@
 [Unit]
 Description=key remapping daemon
-Requires=local-fs.target
-After=local-fs.target
 
 [Service]
 Type=simple
 ExecStart=@PREFIX@/bin/keyd
 
 [Install]
-WantedBy=sysinit.target
+WantedBy=multi-user.target