Revert "Use Jack to check build"

This reverts commit 8bc90fd2.

This CL also impacts standard targets. With Jack enabled, a global
'make' without that CL produce ~287 dex files, with this CL, it
produces ~697 dex files.

Bug: 19069325
Change-Id: I39853da0cba8226f31037733edc420507d76c8c0