Revert "rebaseline_server: download actual-results.json files from GCS instead of SVN"

This reverts commit f4666045f378dee22ce40108e90bf5195634ebfc.

BUG=skia:2641
NOTREECHECKS=True
NOTRY=True
R=jcgregorio@google.com
TBR=jcgregorio

Author: epoger@google.com

Review URL: https://codereview.chromium.org/317783004
16 files changed