travis: removed unused nginx tarball download.

Author: thibaultcha

.travis.yml

@@ -39,7 +39,6 @@ install:
   - if [ ! -f download-cache/openssl-$OPENSSL_VER.tar.gz ]; then wget -O download-cache/openssl-$OPENSSL_VER.tar.gz https://www.openssl.org/source/openssl-$OPENSSL_VER.tar.gz; fi
   - sudo apt-get install -qq -y cpanminus axel
   - sudo cpanm --notest Test::Nginx > build.log 2>&1 || (cat build.log && exit 1)
-  - wget http://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz
   - git clone https://github.com/openresty/openresty.git ../openresty
   - git clone https://github.com/openresty/nginx-devel-utils.git
   - git clone https://github.com/openresty/lua-cjson.git