Delete .travis.yml

.travis.yml

-language: node_js
-matrix:
-  include:
-    - node_js: 12
-install:
-- npm install
-- wget https://github.com/gohugoio/hugo/releases/download/v0.76.5/hugo_0.76.5_Linux-64bit.deb
-- sudo dpkg -i hugo*.deb
-script:
- - hugo --gc --minify --buildFuture