Revert "Introduce rtc_test_suite and rtc_cc_test "

This reverts commit cfe2b7818cf0e8cb26caf765cb77fef751c36a61.

Reason for revert: breaks downstream bots

Original change's description:
> Introduce rtc_test_suite and rtc_cc_test 
>
> rtc_cc_test represents a single test or a small collection of tests. It
> generates both an rtc_library to be included in an rtc_test or
> rtc_test_suite, as well as a standalone rtc_test to run those few tests.
>
> rtc_test_suite represents a collection of tests and produces a binary
> containing all tests.
>
> An action is added to confirm that an rtc_cc_test is included in an
> rtc_test_suite. If this is not the case, one may not compile the
> standalone test binary for the unit test.
>
> These new templates will replace the monolithic rtc_test/rtc_library
> to allow for faster test execution. 
>
> Bug: webrtc:498394143
> Change-Id: Id3fb3108449bd9c73bc0e7f674d7a97f6a6a6964
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/461480
> Reviewed-by: Jeremy Leconte <jleconte@google.com>
> Commit-Queue: Evan Shrubsole <eshr@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#47352}

Bug: webrtc:498394143
Change-Id: Iac7ddf907e429375b435ec36f6aa3086ce792525
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/462460
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Evan Shrubsole <eshr@webrtc.org>
Reviewed-by: Jeremy Leconte <jleconte@google.com>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#47363}