cilium, builder: declutter all unused packages in builder

It is unnecessary or unclear why they are being installed. Just remove
them so we can start off a clean base where we later document every pkg
addition properly in the git history.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Dockerfile

@@ -15,7 +15,7 @@ LABEL cilium-sha=${CILIUM_SHA}
 # versions to be built while allowing the new versions to make changes
 # that are not backwards compatible.
 #
-FROM quay.io/cilium/cilium-builder:2020-05-05 as builder
+FROM quay.io/cilium/cilium-builder:2020-05-06 as builder
 ARG CILIUM_SHA=""
 LABEL cilium-sha=${CILIUM_SHA}
 LABEL maintainer="maintainer@cilium.io"

Dockerfile.builder

@@ -28,11 +28,7 @@ RUN apt-get update && \
       git \
       libc6-dev \
       libelf-dev \
-      make \
-      rsync \
-      unzip \
-      wget \
-      zip && \
+      make && \
     apt-get purge --auto-remove && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

test/docker-compose.yml

@@ -15,7 +15,7 @@ services:
     command: "etcd -name etcd0 -advertise-client-urls http://0.0.0.0:4002 -listen-client-urls http://0.0.0.0:4002 -initial-cluster-token etcd-cluster-1 -initial-cluster-state new"
     privileged: true
   base_image:
-    image: "quay.io/cilium/cilium-builder:2020-04-16"
+    image: "quay.io/cilium/cilium-builder:2020-05-06"
     volumes:
       - "./../:/go/src/github.com/cilium/cilium/"
     privileged: true