openssh: Remove systemd support which is merged in oe-core

OE-Core has been updated to support openssh with systemd. Stuff here is
not required anymore.

Signed-off-by: Muhammad Shakeel <muhammad_shakeel@mentor.com>
lighttpd: Remove systemd support which is merged in oe-core

OE-Core has been updated to support lighttpd with systemd. Stuff here is
not required anymore.

Signed-off-by: Muhammad Shakeel <muhammad_shakeel@mentor.com>
rpcbind: Remove systemd support which is merged in oe-core

OE-Core has been updated to support rpcbind with systemd. Stuff here is
not required anymore.

Signed-off-by: Muhammad Shakeel <muhammad_shakeel@mentor.com>