Dropped go get from travis config

.travis.yml

@@ -7,14 +7,10 @@ go:
 before_install:
   - sudo apt-get update -qq
   - sudo apt-get install -y libpam-dev
-  - go get github.com/msteinert/pam
-
-install:
-  - go get -t -v ./...
-
-script: |
-  go build -v -tags "pam"
 
+script:
+  - go build -v -tags 'cert sqlite pam miniwinsvc'
+  - |
     for pkg in $(go list ./... | grep -v /vendor/)
     do
       go test -v -race -cover -coverprofile $GOPATH/src/$pkg/coverage.out $pkg || exit 1