fmf: Fix bogus /dev/sda* → nvme* symlinks on TF machines

Rawhide Testing Farm machines started to get a set of symlinks like
/dev/sda1 -> nvme0n1 (but *no* /dev/sda), via amazon-ec2-utils
(amazonlinux/amazon-ec2-utils#37).

They break `scsi_debug`, as that creates /dev/sda -- but then trying to
create partitions on it doesn't have any namespace room for /dev/sda1
etc., as that is already taken. This breaks all storage tests which use
a RAM disk.

That package isn't yet installed in Fedora 39/40, only rawhide. We don't
need it and it only causes trouble → kann weg.

Fixes cockpit-project#20520

test/browser/browser.sh

@@ -23,6 +23,14 @@ if rpm -q setroubleshoot-server; then
     dnf remove -y --setopt=clean_requirements_on_remove=False setroubleshoot-server
 fi
 
+# HACK: this package creates bogus/broken sda → nvme symlinks; it's new in rawhide TF default instances, not required for
+# our tests, and only causes trouble; https://github.com/amazonlinux/amazon-ec2-utils/issues/37
+if rpm -q amazon-ec2-utils; then
+    rpm -e --verbose amazon-ec2-utils
+    # clean up the symlinks
+    udevadm trigger /dev/nvme*
+fi
+
 if grep -q 'ID=.*fedora' /etc/os-release && [ "$PLAN" = "main" ]; then
     # Fedora-only packages which are not available in CentOS/RHEL
     # required by TestLogin.testBasic