[automerger skipped] Get rid of obsolete Make variable TARGET_CORE_JARS. am: c34e3ab270 -s ours am: 9a3379ffdf -s ours

am skip reason: Change-Id I95f9d3abe34df93d486fdc2a5fc65d3013e75a86 with SHA-1 c34e3ab270 is in history

Change-Id: I198596690817077cc435911547c7177a8cde691f