StackTraceUtility.ExtractStringFromExceptionInternal() and LogStringToConsole take too much time



Hi all~
After I checked Development Build and Autoconnect Profiler, as the profiler panel shows above.
I googled StackTraceUtility…and LogStringToConsole, but I didn’t see any precise answers.
I have some questions here:
1.Will they disappear automaticly when I build the .apk file without checking developent build?
2.Is there a way that I can profile or see what happened like profiler analyzer with release build?
3.BTW, do I have to comment out the codes “Debug.Log()” manually to get a better performance?