kernel: remove comment in k_thread_abort()

z_reschedule_unlocked() is a no-op if the caller is
cooperative, because the logic that maintains the ready queue
ensures that the co-op thread is always at the front unless
some special handling is done like in k_yield(), which does
not happen here.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>

kernel/thread_abort.c

@@ -42,14 +42,6 @@ void z_impl_k_thread_abort(k_tid_t thread)
 
 		z_swap(&lock, k_spin_lock(&lock));
 	} else {
-		/* Really, there's no good reason for this to be a
-		 * scheduling point if we aren't aborting _current (by
-		 * definition, no higher priority thread is runnable,
-		 * because we're running!).  But it always has been
-		 * and is thus part of our API, and we have tests that
-		 * rely on k_thread_abort() scheduling out of
-		 * cooperative threads.
-		 */
 		z_reschedule_unlocked();
 	}
 }