Deprecate Cryptohome functions BUG=chromium-os:16552 TEST=gmerge libcros Change-Id: I70d01010ad6528e8820f8795c8e6ede560470d47 Reviewed-on: https://gerrit.chromium.org/gerrit/15817 Reviewed-by: Satoru Takabayashi <[email protected]> Commit-Ready: Ryo Hashimoto <[email protected]> Tested-by: Ryo Hashimoto <[email protected]>