tests: Removed 50.vortex tests

In an effort to cleanup the old tests, and migrate useful tests to be
executed via `test/main.py`, it has been decided that the
`test/long/se/50.vortex` tests should be removed.

Jira: https://gem5.atlassian.net/browse/GEM5-109
Change-Id: I9c40ca74aad11a80bd2a91bd67c9561ffa76e78f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24387
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
10 files changed