Remove redundant docker files from grpc repo

tools/dockerfile/grpc_build_deb/Dockerfile

-# Copyright 2015, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# Dockerfile to build Debian packages for gRPC C core.
-FROM grpc/base
-
-# Add the file containing the gRPC version
-ADD version.txt version.txt
-
-# Add the update-to-date distpackages folder
-ADD distpackages distpackages
-
-# Install dependencies
-RUN echo 'deb http://http.debian.net/debian experimental main contrib non-free' >> /etc/apt/sources.list
-RUN apt-get update \
-  && apt-get -t experimental install -y openssl=1.0.2-1 \
-  && apt-get install -y lintian
-
-# Get the source from GitHub
-RUN git clone https://github.com/grpc/grpc.git /var/local/git/grpc
-RUN cd /var/local/git/grpc && \
-  git pull --recurse-submodules && \
-  git submodule update --init --recursive
-
-RUN /bin/bash -l -c 'cd /distpackages && ./build_deb_packages.sh'

tools/dockerfile/grpc_build_deb/version.txt

-0.6.0

tools/dockerfile/grpc_ruby_deb/Dockerfile

-# Copyright 2015, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# Dockerfile for gRPC Ruby, but using Debian packages for gRPC C core.
-FROM grpc/ruby_base
-
-# Pull the latest sources
-RUN cd /var/local/git/grpc \
-  && git pull --recurse-submodules \
-  && git submodule update --init --recursive
-
-# Make sure we don't rely on things that shouldn't be there.
-RUN make clean -C /var/local/git/grpc
-
-# Debian packages need to be supplied externally
-ADD libgrpc_amd64.deb libgrpc_amd64.deb
-ADD libgrpc-dev_amd64.deb libgrpc-dev_amd64.deb
-
-# Install the C core .deb packages
-RUN /bin/bash -l -c 'dpkg -i libgrpc_amd64.deb libgrpc-dev_amd64.deb'
-
-# Build ruby gRPC and run its tests
-RUN /bin/bash -l -c 'cd /var/local/git/grpc/src/ruby && bundle && rake'
-
-# Add a cacerts directory containing the Google root pem file, allowing the
-# ruby client to access the production test instance
-ADD cacerts cacerts
-
-# Add a service_account directory containing the auth creds file
-ADD service_account service_account
-
-# Specify the default command such that the interop server runs on its known
-# testing port
-CMD ["/bin/bash", "-l", "-c", "ruby /var/local/git/grpc/src/ruby/bin/interop/interop_server.rb --use_tls --port 8060"]

tools/dockerfile/grpc_ruby_deb/README.md

-GRPC RUBY Base Dockerfile (Debian package version)
-========================
-
-Dockerfile for creating the Ruby gRPC development Docker instance.
-Uses gRPC C core Debian packages instead of installing it using make.