Revert "Reland: Rename gl_test to gpu_tests"

This reverts commit e1aacdeb872de554d8452933f86d14d651ca3f5a.

Reason for revert: chromium-internal-arm-builder's generate_build_files is broken by this, see https://ci.chromium.org/p/chrome/builders/ci/chromium-internal-arm-builder/7799

Original change's description:
> Reland: Rename gl_test to gpu_tests
> 
> This is to make the name reflect that there aren't just OpenGL tests in
> this executable now, there are WebGPU / Dawn tests too.
> 
> [email protected]
> 
> Bug: 1017035
> Change-Id: I5f0f04a2082533eda1cd6c474c85214e2195304d
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1888936
> Reviewed-by: Corentin Wallez <[email protected]>
> Reviewed-by: John Budorick <[email protected]>
> Commit-Queue: Corentin Wallez <[email protected]>
> Cr-Commit-Position: refs/heads/master@{#710854}

[email protected],[email protected],[email protected]

Change-Id: Id0dcd22a2246be1f4a1507f336e8f63eddb03557
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1017035
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1891469
Reviewed-by: Sky Malice <[email protected]>
Commit-Queue: Sky Malice <[email protected]>
Cr-Commit-Position: refs/heads/master@{#711018}
22 files changed