Rationale:
1/ This tool is no longer necessary following the implementation of a
sysfs driver
2/ The upstream author, Robert Marko, stated[1] that this tool had been
taken from his tree in an unfinished state not suitable for merging
[1] https://github.com/openwrt/openwrt/pull/2850#issuecomment-610277863
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>