Removed obsolete .travis.yml

The travis-ci build scripts were deleted previously.

.travis.yml

@@ -1,69 +0,0 @@
-#
-#   Copyright 2015 Pixar
-#
-#   Licensed under the Apache License, Version 2.0 (the "Apache License")
-#   with the following modification; you may not use this file except in
-#   compliance with the Apache License and the following modification to it:
-#   Section 6. Trademarks. is deleted and replaced with:
-#
-#   6. Trademarks. This License does not grant permission to use the trade
-#      names, trademarks, service marks, or product names of the Licensor
-#      and its affiliates, except as required to comply with Section 4(c) of
-#      the License and to reproduce the content of the NOTICE file.
-#
-#   You may obtain a copy of the Apache License at
-#
-#       http://www.apache.org/licenses/LICENSE-2.0
-#
-#   Unless required by applicable law or agreed to in writing, software
-#   distributed under the Apache License with the above modification is
-#   distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-#   KIND, either express or implied. See the Apache License for the specific
-#   language governing permissions and limitations under the Apache License.
-#
-language: cpp
-
-os:
-    - linux
-    - osx
-
-osx_image: xcode9
-
-sudo: required
-dist: trusty
-
-compiler:
-    - gcc
-    - clang
-
-branches:
-  only:
-   - master
-   - dev
-
-matrix:
-
-    # On Linux build with gcc and on OSX build with clang
-    exclude:
-        - os: osx
-          compiler: gcc
-        - os: linux
-          compiler: clang
-
-# build environment
-before_script:
-   - if [ $TRAVIS_OS_NAME == osx ] ; then
-        echo "before_script on OSX" ;
-     elif [ $TRAVIS_OS_NAME == linux ] ; then
-        echo "before_script on Linux" ;
-        source build_scripts/travis_before_script_linux.sh ;
-     fi
-
-script:
-   - if [ $TRAVIS_OS_NAME == osx ] ; then
-        echo "script on OSX" ;
-        build_scripts/travis_script_osx.sh ;
-     elif [ $TRAVIS_OS_NAME == linux ] ; then
-        echo "script on Linux" ;
-        source build_scripts/travis_script_linux.sh ;
-     fi