Update Dockerfile.build

Author: sharmasushant

Dockerfile.build

@@ -4,20 +4,6 @@ RUN apt-get update \
  && apt-get install -y zip \
  && apt-get install -y sudo libltdl-dev
 
-RUN go get -d golang.org/x/sys/unix
-RUN go get -d github.com/Microsoft/hcsshim
-RUN go get -d github.com/containernetworking/cni/pkg/skel
-RUN go get -d k8s.io/api/core/v1
-RUN go get -d k8s.io/api/networking/v1
-RUN go get -d k8s.io/apimachinery/pkg/types
-RUN go get -d k8s.io/apimachinery/pkg/util/wait
-RUN go get -d k8s.io/client-go/informers
-RUN go get -d k8s.io/client-go/informers/core/v1
-RUN go get -d k8s.io/client-go/informers/networking/v1
-RUN go get -d k8s.io/client-go/kubernetes
-RUN go get -d k8s.io/client-go/rest
-RUN go get -d k8s.io/client-go/tools/cache
-
 COPY . /go/src/github.com/Azure/azure-container-networking
 
 WORKDIR /go/src/github.com/Azure/azure-container-networking