perf augmented_raw_syscalls: Do not include stdio.h

We're not using that puts() thing, and thus we don't need to define the
__bpf_stdout__ map, reducing the setup time.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-3452xgatncpil7v22minkwbo@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/examples/bpf/augmented_raw_syscalls.c

@@ -14,7 +14,6 @@
  * code that will combine entry/exit in a strace like way.
  */
 
-#include <stdio.h>
 #include <unistd.h>
 #include <pid_filter.h>