fixup: resume timestamp in walltime

Author: not-matthias

google_benchmark/src/benchmark.cc

@@ -189,6 +189,8 @@ State::State(std::string name, IterationCount max_iters,
       max_iterations(max_iters),
 #if defined(CODSPEED_INSTRUMENTATION) || defined(CODSPEED_WALLTIME)
       codspeed_(codspeed),
+#endif
+#ifdef CODSPEED_WALLTIME
       resume_timestamp_(0),
 #endif
       started_(false),