util-linux: Remove bbappend, resolved in oe-core "dylan"

* util-linux in oe-core has newer PV, so we can remove PR_append too

[GF-5571] CCC: Upgrade to Yocto 1.4 Dylan

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Change-Id: Ibebdaa58140c5a662a66ee2127b40729ae620b15
Reviewed-on: https://g2g.palm.com/2218
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Tested-by: Martin Jansa <Martin.Jansa@lge.com>