remove no longer useful cxx_sanitizers_jessie portability test (clang "7.0")

templates/tools/dockerfile/test/cxx_sanitizers_jessie_x64/Dockerfile.template

@@ -1,32 +0,0 @@
-%YAML 1.2
---- |
-  # Copyright 2018 gRPC authors.
-  #
-  # Licensed under the Apache License, Version 2.0 (the "License");
-  # you may not use this file except in compliance with the License.
-  # You may obtain a copy of the License at
-  #
-  #     http://www.apache.org/licenses/LICENSE-2.0
-  #
-  # Unless required by applicable law or agreed to in writing, software
-  # distributed under the License is distributed on an "AS IS" BASIS,
-  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  # See the License for the specific language governing permissions and
-  # limitations under the License.
-
-  # This is the base Docker image we use for running tests on RBE
-  FROM gcr.io/cloud-marketplace/google/rbe-debian8@sha256:1ede2a929b44d629ec5abe86eee6d7ffea1d5a4d247489a8867d46cfde3e38bd
-  RUN sed -i '/deb http:\/\/httpredir.debian.org\/debian jessie-updates main/d' /etc/apt/sources.list
-
-  <%include file="../../apt_get_basic.include"/>
-  <%include file="../../python_deps.include"/>
-  <%include file="../../gcp_api_libraries.include"/>
-  #=================
-  # C++ dependencies (purposely excluding Clang because it's part of the base image)
-  RUN apt-get update && apt-get -y install libgflags-dev libgtest-dev libc++-dev && apt-get clean
-
-  # Link llvm-symbolizer to where our test scripts expect to find it
-  RUN ln -s /usr/local/bin/llvm-symbolizer /usr/bin/llvm-symbolizer
-
-  # Define the default command.
-  CMD ["bash"]

tools/dockerfile/test/cxx_sanitizers_jessie_x64/Dockerfile

@@ -1,81 +0,0 @@
-# Copyright 2018 gRPC authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# This is the base Docker image we use for running tests on RBE
-FROM gcr.io/cloud-marketplace/google/rbe-debian8@sha256:1ede2a929b44d629ec5abe86eee6d7ffea1d5a4d247489a8867d46cfde3e38bd
-RUN sed -i '/deb http:\/\/httpredir.debian.org\/debian jessie-updates main/d' /etc/apt/sources.list
-
-# Install Git and basic packages.
-RUN apt-get update && apt-get install -y \
-  autoconf \
-  autotools-dev \
-  build-essential \
-  bzip2 \
-  ccache \
-  curl \
-  dnsutils \
-  gcc \
-  gcc-multilib \
-  git \
-  golang \
-  gyp \
-  lcov \
-  libc6 \
-  libc6-dbg \
-  libc6-dev \
-  libgtest-dev \
-  libtool \
-  make \
-  perl \
-  strace \
-  python-dev \
-  python-setuptools \
-  python-yaml \
-  telnet \
-  unzip \
-  wget \
-  zip && apt-get clean
-
-#================
-# Build profiling
-RUN apt-get update && apt-get install -y time && apt-get clean
-
-#====================
-# Python dependencies
-
-# Install dependencies
-
-RUN apt-get update && apt-get install -y \
-    python-all-dev \
-    python3-all-dev \
-    python-setuptools
-
-# Install Python packages from PyPI
-RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
-RUN pip install --upgrade pip==19.3.1
-RUN pip install virtualenv==16.7.9
-RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.5.2.post1 six==1.10.0 twisted==17.5.0
-
-# Google Cloud platform API libraries
-RUN pip install --upgrade google-api-python-client oauth2client
-
-#=================
-# C++ dependencies (purposely excluding Clang because it's part of the base image)
-RUN apt-get update && apt-get -y install libgflags-dev libgtest-dev libc++-dev && apt-get clean
-
-# Link llvm-symbolizer to where our test scripts expect to find it
-RUN ln -s /usr/local/bin/llvm-symbolizer /usr/bin/llvm-symbolizer
-
-# Define the default command.
-CMD ["bash"]

tools/run_tests/run_tests.py

@@ -493,10 +493,6 @@ class CLanguage(object):
         elif compiler == 'clang3.7':
             return ('ubuntu1604',
                     self._clang_make_options(version_suffix='-3.7'))
-        elif compiler == 'clang7.0':
-            # clang++-7.0 alias doesn't exist and there are no other clang versions
-            # installed.
-            return ('sanitizers_jessie', self._clang_make_options())
         else:
             raise Exception('Compiler %s not supported.' % compiler)
 
@@ -1458,7 +1454,7 @@ argp.add_argument(
     '--compiler',
     choices=[
         'default', 'gcc4.9', 'gcc5.3', 'gcc7.4', 'gcc8.3', 'gcc_musl',
-        'clang3.5', 'clang3.6', 'clang3.7', 'clang7.0', 'python2.7',
+        'clang3.5', 'clang3.6', 'clang3.7', 'python2.7',
         'python3.5', 'python3.6', 'python3.7', 'python3.8', 'pypy', 'pypy3',
         'python_alpine', 'all_the_cpythons', 'electron1.3', 'electron1.6',
         'coreclr', 'cmake', 'cmake_vs2015', 'cmake_vs2017'

tools/run_tests/run_tests_matrix.py

@@ -276,7 +276,7 @@ def _create_portability_test_jobs(extra_args=[],
     # portability C and C++ on x64
     for compiler in [
             'gcc4.9', 'gcc5.3', 'gcc7.4', 'gcc8.3', 'gcc_musl', 'clang3.5',
-            'clang3.6', 'clang3.7', 'clang7.0'
+            'clang3.6', 'clang3.7'
     ]:
         test_jobs += _generate_jobs(languages=['c', 'c++'],
                                     configs=['dbg'],