Simplify AppVeyor configuration

Signed-off-by: David Gageot <david@gageot.net>

appveyor.yml

@@ -1,5 +1,3 @@
-# appveyor.yml reference : http://www.appveyor.com/docs/appveyor-yml
-
 version: "{build}"
 
 skip_tags: true
@@ -8,37 +6,21 @@ os: Windows Server 2012 R2
 
 environment:
   GOPATH: c:\gopath
-  # Support go1.5 vendoring (let us avoid messing with GOPATH or using godep)
   GO15VENDOREXPERIMENT: 1
-  matrix:
-  # - GOARCH: 386
-  #   GOVERSION: 1.5.3
-  - GOARCH: amd64
-    GOVERSION: 1.5.3
+  GOARCH: amd64
+  GOVERSION: 1.5.3
 
 clone_folder: c:\gopath\src\github.com\docker\machine
 
 install:
   - set Path=c:\go\bin;%Path%
-  - echo %Path%
   - appveyor DownloadFile https://storage.googleapis.com/golang/go%GOVERSION%.windows-%GOARCH%.msi
   - msiexec /i go%GOVERSION%.windows-%GOARCH%.msi /q
-  - go version
-  - go env
-  - go get github.com/golang/lint/golint
-  - go get github.com/mattn/goveralls
-  - go get golang.org/x/tools/cover
-  - go get github.com/tools/godep
-  - go get github.com/aktau/github-release
 
 build_script:
-  - mkdir bin
-  - go build -o ./bin/docker-machine.exe ./cmd/machine.go
+  - go build -i -o ./bin/docker-machine.exe ./cmd/machine.go
 
 test_script:
-  # test this from a PowerShell
   - powershell -Command go test -v ./libmachine/shell
-  # - go test -v ./...
-  # - go vet ./...
 
 deploy: off