message: Remove redundant CI jobs
diff: @@ -13,8 +13,6 @@ os:
  matrix:
  include:
  - - os: linux
  - env: GNUPLOT=no
  - os: linux
  env: GNUPLOT=yes
  addons:
  @@ -46,8 +44,6 @@ matrix:
  apt:
  packages:
  - gnuplot
  - - os: osx
  - env: GNUPLOT=no
  - os: osx
  env: GNUPLOT=yes
  - os: osx
  