Don't unnecessarily install shellcheck on the lint build
Don't unnecessarily install shellcheck on the lint build

"Travis CI has now integrated ShellCheck by default, so you don't need to manually install it."
https://github.com/koalaman/shellcheck#travis-ci

DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,peercoin/peercoin,peercoin/peercoin,peercoin/peercoin,peercoin/peercoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,peercoin/peercoin,DigitalPandacoin/pandacoin,peercoin/peercoin,DigitalPandacoin/pandacoin