Let postrm use the same logic as the postinst to run on both build machine
and target
[YOCTO #3633]
(From OE-Core rev: dc1bb7a5532411bc9cb7e8678bc540c44fd2cd63)
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>