remove this file, since it's not particularly useful since we've removed

most of the files it mentions, and it doesn't really describe the rest.

lib/libz/INDEX

@@ -1,51 +0,0 @@
-ChangeLog	history of changes
-INDEX		this file
-Make_vms.com	script for Vax/VMS
-Makefile	makefile for Unix (generated by configure)
-Makefile.b32	makefile for Borland C++   32-bit
-Makefile.bor	makefile for Borland C/C++ 16-bit
-Makefile.dj2	makefile for DJGPP 2.x
-Makefile.in	makefile for Unix (template for configure)
-Makefile.msc	makefile for Microsoft C 16-bit
-Makefile.riscos makefile for RISCOS
-Makefile.sas	makefile for Amiga SAS/C
-Makefile.tc	makefile for Turbo C
-Makefile.wat	makefile for Watcom C
-README		guess what
-algorithm.doc	description of the compression & decompression algorithms
-configure	configure script for Unix
-descrip.mms	makefile for Vax/VMS
-zlib.def        definition file for Windows DLL
-zlib.rc         definition file for Windows DLL
-
-
-		zlib public header files (must be kept):
-zconf.h
-zlib.h
-
-		private source files used to build the zlib library:
-adler32.c
-compress.c
-crc32.c
-deflate.c
-deflate.h
-gzio.c
-infblock.c
-infblock.h
-infcodes.c
-infcodes.h
-inffast.c
-inffast.h
-inflate.c
-inftrees.c
-inftrees.h
-infutil.c
-infutil.h
-trees.c
-uncompr.c
-zutil.c
-zutil.h
-
-		source files for sample programs:
-example.c
-minigzip.c