Remove Travis build scripts for the time being (#269)

.travis.yml

-notifications:
-  email: false
-if: tag IS present
-matrix:
-  include:
-  - sudo: required
-    services:
-      - docker
-    env:
-      - DOCKER_IMAGE=quay.io/pypa/manylinux1_x86_64
-  - sudo: required
-    services:
-      - docker
-    env:
-      - DOCKER_IMAGE=quay.io/pypa/manylinux1_i686
-      - PRE_CMD=linux32
-install:
-  - docker pull $DOCKER_IMAGE
-script:
-  - pwd
-  - ls -la
-  - docker run --rm -v `pwd`:/io -e TWINE_USERNAME -e TWINE_PASSWORD $DOCKER_IMAGE $PRE_CMD /io/travis/build-wheels.sh
-  - ls wheelhouse/

travis/build-wheels.sh

-#!/bin/bash
-set -e -x
-
-export PYHOME=/home
-export CL_H=${PYHOME}/cl_h
-export CL_ICDLOAD=${PYHOME}/cl_icdload
-
-cd ${PYHOME}
-yum install -y git cmake
-git clone https://github.com/KhronosGroup/OpenCL-Headers.git ${CL_H}
-git clone https://github.com/KhronosGroup/OpenCL-ICD-Loader.git ${CL_ICDLOAD}
-ln -s ${CL_H}/CL /usr/include/CL
-make -C ${CL_ICDLOAD}
-cp -r ${CL_ICDLOAD}/build/lib/lib* /usr/lib
-
-# Compile wheels
-for PYBIN in /opt/python/*/bin; do
-    "${PYBIN}/pip" install numpy pybind11 mako
-    "${PYBIN}/pip" wheel /io/ -w wheelhouse/
-done
-
-# Bundle external shared libraries into the wheels
-for whl in wheelhouse/*.whl; do
-    auditwheel repair "$whl" -w /io/wheelhouse/
-done
-
-/opt/python/cp37-cp37m/bin/pip install twine
-for WHEEL in /io/wheelhouse/pyopencl*.whl; do
-    # dev
-    # /opt/python/cp37-cp37m/bin/twine upload \
-    #     --skip-existing \
-    #     --repository-url https://test.pypi.org/legacy/ \
-    #     -u "${TWINE_USERNAME}" -p "${TWINE_PASSWORD}" \
-    #     "${WHEEL}"
-    # prod
-    /opt/python/cp37-cp37m/bin/twine upload \
-        --skip-existing \
-        -u "${TWINE_USERNAME}" -p "${TWINE_PASSWORD}" \
-        "${WHEEL}"
-done