Remove third_party/tlslite and SpawnedTestServer::TYPE_HTTPS

SpawnedTestServer::TYPE_HTTPS is now unused and completely migrated
to EmbeddedTestServer. That, in turn, means tlslite is also unused
because SpawnedTestServer::TYPE_WSS uses the built-in Python ssl module.

(SpawnedTestServer is now just TYPE_HTTP, only used by policy_testserver,
and the WebSockets modes because we lack an embedded WebSockets test
server.)

Bug: 492672, 1250903
Change-Id: If221c09671c09495bc5d7b086d0751b639515763
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3286767
Commit-Queue: David Benjamin <davidben@chromium.org>
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@google.com>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Matt Mueller <mattm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#944238}
NOKEYCHECK=True
GitOrigin-RevId: 878348a2f43e41a1036dc716aacc2e73f2b34815
4 files changed