tracing: Use __free(kfree) in trace.c to remove gotos

tracing: Use __free(kfree) in trace.c to remove gotos

There's a couple of locations that have goto out in trace.c for the only
purpose of freeing a variable that was allocated. These can be replaced
with __free(kfree).

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/20250801203858.040892777@kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>