selftests/run_kselftest.sh: Remove unused $ROOT
Fix the following shellcheck warning:
ROOT appears unused. Verify use (or export if used externally). [SC2034]
Signed-off-by: Ricardo B. Marlière <rbm@suse.com>
Link: https://lore.kernel.org/r/20260320-selftests-fixes-v1-1-79144f76be01@suse.com
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
authored by