Disable DEBUG_UE_TIMING logs in 4g dlsim test

Setting the DEBUG_UE_TIMING flag caused a flood of UE timing logs, resulting
in dlsim output logs as large as 1.5MB per test in CI. This commit comments
out the line where we set the flag to reduce log verbosity.

openair1/SIMULATION/LTE_PHY/dlsim.c

@@ -892,7 +892,7 @@ int main(int argc, char **argv) {
   set_glog_onlinelog(true);
   // enable these lines if you need debug info
   set_glog(loglvl);
-  SET_LOG_DEBUG(DEBUG_UE_TIMING);
+  // SET_LOG_DEBUG(DEBUG_UE_TIMING);
   // moreover you need to init itti with the following line
   // however itti will catch all signals, so ctrl-c won't work anymore
   // alternatively you can disable ITTI completely in CMakeLists.txt