rcutorture: Remove obsolete parameter check from mkinitrd.sh

The mkinitrd.sh script no longer takes an argument, so this commit
therefore removes the code that checks for the parameter being present.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
This commit is contained in:
Paul E. McKenney 2023-07-05 15:49:29 -07:00
commit 2f25542c6f