Merge branch 'jk/drop-sha1-entry-pos'

Code clean-up. * jk/drop-sha1-entry-pos: sha1_file: drop experimental GIT_USE_LOOKUP search

Junio C Hamano committed Aug 22, 2017 at 10:29 UTC caa25f75be9ee085332208c5c1fe13644e9f0b34

No changes.