message: remove remaining xtrace
diff: @@ -553,7 +553,6 @@ functions:
  shell: bash
  working_dir: "mongo-cxx-driver"
  script: |
  - set -o xtrace
  export MONGOC_INSTALL_PREFIX=$(pwd)/../mongoc
  export MONGOCXX_INSTALL_PREFIX=$(pwd)/build/install
  @@ -570,7 +569,6 @@ functions:
  working_dir: "mongo-cxx-driver"
  silent: true
  script: |
  - set -o xtrace
  export MONGOC_INSTALL_PREFIX=$(pwd)/../mongoc
  export MONGOCXX_INSTALL_PREFIX=$(pwd)/build/install
  