factory: remove jsonrpclib inside factory, make_par: don't copy argparse

1. The jsonrpclib is included in test image, so we don't need to keep a
   copy in third_party directory and copy it to factory.par.
   But since jsonrpclib is not a standard library, make_par will still
   copy it from site-packages if it's not building a mini version, just
   like 'google' and 'yaml' module.

2. builtin argparse in test image is identical to the one in chroot, we
   don't need to copy it in make_par.

CQ-DEPEND=CL:325701
BUG=chromium:403702
TEST=make test, make par, python py/tools/make_par.py --mini

Change-Id: Iec2693d9a0503e10b145993b697b7a6a07167657
Reviewed-on: https://chromium-review.googlesource.com/325204
Commit-Ready: Wei-Han Chen <stimim@chromium.org>
Tested-by: Wei-Han Chen <stimim@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
15 files changed