closed #2379: Removing CCZone.h/.cpp.
issue #2379: Removing unused file - cocos2d.vcxproj.filter.orig.
issue #2379: Removing CCZone.cpp for Makefile.
issue #2379: Removing CCZone.cpp/.h for win32 project.
Merge pull request #3112 from dumganhar/iss2379-remove-zone

closed 2379: Removing CCZone.h/.cpp.