ext/zip: Remove un-needed extra libs variables

Author: hughmcmaster

ext/zip/config.m4

@@ -8,33 +8,25 @@ if test "$PHP_ZIP" != "no"; then
 
   PHP_EVAL_INCLINE($LIBZIP_CFLAGS)
   PHP_EVAL_LIBLINE($LIBZIP_LIBS, ZIP_SHARED_LIBADD)
-  LIBZIP_LIBDIR=`$PKG_CONFIG --variable=libdir libzip`
 
   dnl Could not think of a simple way to check libzip for overwrite support
   PHP_CHECK_LIBRARY(zip, zip_open,
   [
     AC_DEFINE(HAVE_LIBZIP,1,[ ])
   ], [
     AC_MSG_ERROR(could not find usable libzip)
-  ], [
-    -L$LIBZIP_LIBDIR
   ])
 
   PHP_CHECK_LIBRARY(zip, zip_file_set_encryption,
   [
     AC_DEFINE(HAVE_ENCRYPTION, 1, [Libzip >= 1.2.0 with encryption support])
   ], [
     AC_MSG_WARN(Libzip >= 1.2.0 needed for encryption support)
-  ], [
-    -L$LIBZIP_LIBDIR
   ])
 
   PHP_CHECK_LIBRARY(zip, zip_libzip_version,
   [
     AC_DEFINE(HAVE_LIBZIP_VERSION, 1, [Libzip >= 1.3.1 with zip_libzip_version function])
-  ], [
-  ], [
-    -L$LIBZIP_LIBDIR
   ])
 
   AC_DEFINE(HAVE_ZIP,1,[ ])