perf symbols: Remove needless goto

We can plain use the an else to the if block that is right after that
goto, so simplify it.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-vnpc2rakf6vc98pcl5z1cfrg@git.kernel.org


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>