Remove remnants of the OCSP CA from testserver.py

These tests have since been converted to EmbeddedTestServer. This lets
us delete a bunch of code from testserver.py and thus reduce the amount
we need to convert to Python 3.

Bug: 1248530
Change-Id: I214dc5b59edecdf00f14571acb4a4d986f679d5e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3156546
Commit-Queue: David Benjamin <davidben@chromium.org>
Reviewed-by: Ryan Sleevi <rsleevi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#921414}
NOKEYCHECK=True
GitOrigin-RevId: ff8cff7c592f35b9ae4c22715880aeb7e8294ad2
1 file changed