Remove outdated zlib readme file for windows build

diff --git a/ext/zlib/zlib_win32_howto.txt b/ext/zlib/zlib_win32_howto.txt
deleted file mode 100644 (file)
index 59ff3c4..0000000
--- a/ext/zlib/zlib_win32_howto.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-Rules for building ZLIB
------------------------
-
-The zlib project requires the following files:
-
-php_build\zlib\include\zlib.h
-php_build\zlib\include\zconf.h
-php_build\zlib\lib\zlibstat.lib
-
-php_build is a directory at the same level as php7.
-
-Start Visual Studio, load php_modules.dsw, select the ZLIB projects, and build
-it.
-
-
-  
\ No newline at end of file