tracing/eprobe: drop unneeded breaks

Drop break after return.

Link: https://lore.kernel.org/all/20230928104334.41215-1-Julia.Lawall@inria.fr/



Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>