Using $GOPATH instead of $HOME/gopath
Using $GOPATH instead of $HOME/gopath

since $GOPATH is set by gvm and is not actually located in $HOME/gopath.
Also removing a function that appears not to be used anywhere (and
possibly deprecated?)

Signed-off-by: Jesse Szwedko <432d976e4739624f6b291352a333ace137ad2cdb@modcloth.com>

meatballhat/travis-buddy,meatballhat/travis-buddy