Revert "infra: Enable tests for try/linux-full-remote-rel"

This reverts commit 383e2a31a2432dc6b286659f9c89b3e15d634455.

Reason for revert: The experiment has completed.

Original change's description:
> infra: Enable tests for try/linux-full-remote-rel
>
> This builder will enable a CAS sharing experiment, which skips downloading build outputs by default.
> Test files will be streamed from the build CAS to the Swarming CAS
> without writing them to the local disk.
> To check if `isolate tests` and the produced tests are correct,
> we want to enable testing of this builder.
>
> Bug: 364131303
> Cq-Include-Trybots: luci.chromium.try:linux-full-remote-rel
> Change-Id: I823783670cc15d21e99e7699827ed60c52aed391
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5833775
> Reviewed-by: Ben Pastene <bpastene@chromium.org>
> Commit-Queue: Junji Watanabe <jwata@google.com>
> Cr-Commit-Position: refs/heads/main@{#1357447}

Bug: 364131303
Change-Id: I1adaef371f008c7820d04eab2c06e86c647f30e6
Cq-Include-Trybots: luci.chromium.try:linux-full-remote-rel
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5903154
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Commit-Queue: Junji Watanabe <jwata@google.com>
Cr-Commit-Position: refs/heads/main@{#1362814}