Revert "add comments"

This reverts commit 81d2b9e7c82eef2ea4151008ed763dc28c2340d2.
Merge branch 'master' of https://github.com/aokman/Erya3D

Conflicts:
	Engine/Common/ReferenceCounter.h
	Engine/Erya3D.vcxproj
	Engine/Erya3D.vcxproj.filters