Revert "bugfix: applied the patch to fix a new regression in nginx 1.7.7's ngx_gzip and ngx_gunzip modules that could lead to request hang when the downstream is slow to write to."

This reverts commit b6d3a5cf7b.

util/mirror-tarballs

@@ -277,13 +277,6 @@ if [ "$answer" = "N" ]; then
     echo
 fi
 
-answer=`$root/util/ver-ge "$main_ver" 1.7.7`
-if [ "$answer" = "Y" ]; then
-    echo "$info_txt applying the gzip_gunzip_flush patch for nginx"
-    patch -p1 < $root/patches/nginx-$main_ver-gzip_gunzip_flush.patch || exit 1
-    echo
-fi
-
 rm -f *.patch || exit 1
 
 cd .. || exit 1