- as a result, discarded the whole chain of support functions, .c files and includes needed to make that one function run
- also removed zlib compile/link dependencies where they are not needed
- reduced the whole zlib package into two core include files
- adjusted makefiles / project files to reflect this change
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@10273 54d463be-8e91-2dee-dedb-b68131a5f0ec
