GalaxyParts: remove dynamic lmk & background process limit options

These options are unnecessary on KitKat

Conflicts:
	prebuilt/bin/galaxyparts
	ramdisk/init.msm7x27.parts.rc

(cherry picked from commit c40f6964cc643500c58692aeceda7ee6a3269102)

Change-Id: Iac5748d15973955bbded8770d815b74a5ceba2f9