Revert "Bug 1972411 - give gnome-shell and pipewire more time to start, and retry the task if we time out. r=jmaher" for causing linux perma failures
This reverts commit 2b905fe7199c9210434f7c7f8326b57025c91c55.
Revert "Bug 1972411 - make /builds/worker/fetches a volume in the test docker image. r=releng-reviewers,Eijebong"
This reverts commit 9d15aecaf6a08b98d3c47f2d0e644e35341b2520.