install/v2plugin/Dockerfile: remove glibc package

Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com>

install/v2plugin/Dockerfile

@@ -1,14 +1,11 @@
 # Docker v2plugin container with OVS / netplugin / netmaster
 
-FROM alpine:3.5
+FROM alpine:3.6
 LABEL maintainer "Cisco Contiv (https://contiv.github.io)"
 
 RUN mkdir -p /run/docker/plugins /etc/openvswitch /var/run/contiv/log \
  && echo 'http://dl-cdn.alpinelinux.org/alpine/v3.4/main' >> /etc/apk/repositories \
- && apk --no-cache add openvswitch=2.5.0-r0 iptables ca-certificates openssl curl \
- && wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://raw.githubusercontent.com/andyshinn/alpine-pkg-glibc/master/sgerrand.rsa.pub \
- && wget https://github.com/andyshinn/alpine-pkg-glibc/releases/download/2.23-r1/glibc-2.23-r1.apk \
- && apk --no-cache add glibc-2.23-r1.apk
+ && apk --no-cache add openvswitch=2.5.0-r0 iptables ca-certificates openssl curl
 
 # copy in binaries and scripts
 ARG TAR_FILE