Do not fail for after_success script

.travis.yml

@@ -95,7 +95,6 @@ script: |
  if [ ${TRAVIS_OS_NAME} == "osx" ] && [ "${COVERITY_SCAN_BRANCH}" != 1 ]; then sh ./tools/travis/travis_osx_script.sh; fi
 
 after_success: |
- set -e
  if [ ${TRAVIS_OS_NAME} == "linux" ]; then sh ./tools/travis/travis_linux_after_success.sh; fi
 
 deploy: