Remove code in the old repository

TEST=None
BUG=b:217462133

Change-Id: I2530620be05c043c5a033b87b622d8f1ff271949
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/ide_tooling/+/4123204
Commit-Queue: Keigo Oka <oka@chromium.org>
Reviewed-by: Tatsuhisa Yamaguchi <yamaguchi@chromium.org>
Tested-by: Keigo Oka <oka@chromium.org>
54 files changed