Remove package run-postinsts from ROOTFS_PKGMANAGE. run-postinsts has
already added in ROOTFS_PKGMANAGE_BOOTSTRAP and then added to rootfs
conditionally by checking image feature "package-management".
(From OE-Core rev: 41aad841e93daaf5d174b14b2fec60b786ead4b3)
Signed-off-by: Kang Kai <kai.kang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>