Remove manylinux2010 i686 targets

tools/dockerfile/grpc_artifact_python_manylinux2010_x86/Dockerfile

@@ -1,38 +0,0 @@
-# Copyright 2019 The 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.
-
-# Docker file for building gRPC manylinux Python artifacts.
-
-FROM quay.io/pypa/manylinux2010_i686
-
-# Update the package manager
-RUN yum update -y
-RUN yum install -y curl-devel expat-devel gettext-devel linux-headers openssl-devel zlib-devel gcc
-
-###################################
-# Install Python build requirements
-RUN /opt/python/cp27-cp27m/bin/pip install cython
-RUN /opt/python/cp27-cp27mu/bin/pip install cython
-RUN /opt/python/cp34-cp34m/bin/pip install cython
-RUN /opt/python/cp35-cp35m/bin/pip install cython
-RUN /opt/python/cp36-cp36m/bin/pip install cython
-RUN /opt/python/cp37-cp37m/bin/pip install cython
-
-####################################################
-# Install auditwheel with fix for namespace packages
-RUN git clone https://github.com/pypa/auditwheel /usr/local/src/auditwheel
-RUN cd /usr/local/src/auditwheel && git checkout 2.1
-RUN /opt/python/cp36-cp36m/bin/pip install /usr/local/src/auditwheel
-RUN rm /usr/local/bin/auditwheel
-RUN cd /usr/local/bin && ln -s /opt/python/cp36-cp36m/bin/auditwheel

tools/run_tests/artifacts/artifact_targets.py

@@ -361,18 +361,14 @@ def targets():
         CSharpExtArtifact('linux', 'android', arch_abi='armeabi-v7a'),
         CSharpExtArtifact('linux', 'android', arch_abi='x86'),
         CSharpExtArtifact('macos', 'ios'),
+        # TODO(https://github.com/grpc/grpc/issues/20283)
+        # Add manylinux2010_x86 targets once this issue is resolved.
         PythonArtifact('manylinux1', 'x86', 'cp27-cp27m'),
         PythonArtifact('manylinux1', 'x86', 'cp27-cp27mu'),
         PythonArtifact('manylinux1', 'x86', 'cp34-cp34m'),
         PythonArtifact('manylinux1', 'x86', 'cp35-cp35m'),
         PythonArtifact('manylinux1', 'x86', 'cp36-cp36m'),
         PythonArtifact('manylinux1', 'x86', 'cp37-cp37m'),
-        PythonArtifact('manylinux2010', 'x86', 'cp27-cp27m'),
-        PythonArtifact('manylinux2010', 'x86', 'cp27-cp27mu'),
-        PythonArtifact('manylinux2010', 'x86', 'cp34-cp34m'),
-        PythonArtifact('manylinux2010', 'x86', 'cp35-cp35m'),
-        PythonArtifact('manylinux2010', 'x86', 'cp36-cp36m'),
-        PythonArtifact('manylinux2010', 'x86', 'cp37-cp37m'),
         PythonArtifact('linux_extra', 'armv7', '2.7'),
         PythonArtifact('linux_extra', 'armv7', '3.4'),
         PythonArtifact('linux_extra', 'armv7', '3.5'),