* Remove standard C headers since we have vmlinux.h already
* Simplify get_goroutine_id() implementation, this reduces a map
and thus reduces runtime memory comsumption.
While at it, unify all indention using 4 spaces.
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
This patch removes the old error-prone way of tracking
whether the tracepoint is for a function entry or
return. Instead of trying to guess, let the data structure
simply tell us directly.
