Remove speedtouch from packages.both

Since 2018-06-05:
speedtouch 1.3.1-6 has been removed from the [extra] repository.
https://www.archlinux.org/packages/extra/x86_64/speedtouch/



Signed-off-by: Li-Yu Yu <afg984@gmail.com>

configs/releng/packages.both

@@ -51,7 +51,6 @@ rsync
 sdparm
 sg3_utils
 smartmontools
-speedtouch
 sudo
 tcpdump
 testdisk