tracing/sched: Remove obsolete comment on suffixes

Commit ac01fa7 ("tracepoint: Have tracepoints created with DECLARE_
TRACE() have _tp suffix") makes it unnecessary to manually add a suffix.

Remove a now obsolete comment.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ricardo Neri <ricardo.neri@intel.com>
Link: https://lore.kernel.org/20250620-rneri-tp-comment-fix-v1-1-e0f6495ac33c@linux.intel.com
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Author: ricardon

include/trace/events/sched.h

@@ -829,8 +829,6 @@ TRACE_EVENT(sched_wake_idle_without_ipi,
 /*
  * Following tracepoints are not exported in tracefs and provide hooking
  * mechanisms only for testing and debugging purposes.
- *
- * Postfixed with _tp to make them easily identifiable in the code.
  */
 DECLARE_TRACE(pelt_cfs,
 	TP_PROTO(struct cfs_rq *cfs_rq),