tests: Removing unittests for .perf and .prof
tests: Removing unittests for .perf and .prof

.perf and .prof no longer exist as build targets. We now only test .opt
and .debug as of this commit.

Change-Id: Ieaf93edd33fe64330d50c6d446bfd21f9f07a895
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/52983
Reviewed-by: Bobby R. Bruce <b9dba908ffb6c6d8ffe449cc88b3709c13c485c2@ucdavis.edu>
Maintainer: Bobby R. Bruce <b9dba908ffb6c6d8ffe449cc88b3709c13c485c2@ucdavis.edu>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>

gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5