Merge pull request #1578 from cyphar/remove-shfmt-from-ci

travis: drop shfmt install

Author: crosbymichael

.travis.yml

@@ -24,7 +24,6 @@ before_install:
   - sudo apt-get install -y libseccomp-dev libapparmor-dev
   - go get -u github.com/golang/lint/golint
   - go get -u github.com/vbatts/git-validation
-  - go get -u github.com/mvdan/sh/cmd/shfmt
   - env | grep TRAVIS_
 
 script: