ring_buffer: Remove unused "event" parameter

After commit a389d86f7f ("ring-buffer: Have nested events still record
running time stamp"), the "event" parameter is no longer used in either
ring_buffer_unlock_commit() or rb_commit(). Best to remove it.

Link: https://lkml.kernel.org/r/1666274811-24138-1-git-send-email-chensong_2000@189.cn

Signed-off-by: Song Chen <chensong_2000@189.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

kernel/trace/ring_buffer_benchmark.c

@@ -258,7 +258,7 @@ static void ring_buffer_producer(void)
 				hit++;
 				entry = ring_buffer_event_data(event);
 				*entry = smp_processor_id();
-				ring_buffer_unlock_commit(buffer, event);
+				ring_buffer_unlock_commit(buffer);
 			}
 		}
 		end_time = ktime_get();