remove unused dockerfile

Dockerfile

@@ -1,33 +0,0 @@
-FROM ubuntu:18.04
-ENV SRC /home/tester/src
-ENV DEBIAN_FRONTEND noninteractive
-
-RUN apt-get update -y && apt-get install -qy \
-        locales \
-        git \
-        wget \
-        python \
-        python3 \
-        python-dev \
-        python3-dev \
-        python-pip \
-        librocksdb-dev \
-        libsnappy-dev \
-        zlib1g-dev \
-        libbz2-dev \
-        liblz4-dev \
-        && rm -rf /var/lib/apt/lists/*
-
-#NOTE(sileht): really no utf-8 in 2017 !?
-ENV LANG en_US.UTF-8
-RUN update-locale
-RUN locale-gen $LANG
-
-#NOTE(sileht): Upgrade python dev tools
-RUN pip install -U pip tox virtualenv
-
-RUN groupadd --gid 2000 tester
-RUN useradd --uid 2000 --gid 2000 --create-home --shell /bin/bash tester
-USER tester
-
-WORKDIR $SRC