suricata: work around scan-build warnings

suricata: work around scan-build warnings

suricata.c:691:17: warning: Value stored to 'bits' during its initialization is never read [deadcode.DeadStores]
    const char *bits = "<unknown>-bits";
                ^~~~   ~~~~~~~~~~~~~~~~
suricata.c:692:17: warning: Value stored to 'endian' during its initialization is never read [deadcode.DeadStores]
    const char *endian = "<unknown>-endian";
                ^~~~~~   ~~~~~~~~~~~~~~~~~~
2 warnings generated.

(cherry picked from commit c13a6fa73c4c42826d12d9630878c8000d7a6dd4)