message: removed the last traces of gcc on osx in travis CI
diff: @@ -256,25 +256,6 @@ install:
  else
  brew install cmake
  fi
  - # gcc
  - if [[ "${COMPILER}" = "g++-4.9" ]]; then
  - brew install gcc49
  - fi
  - if [[ "${COMPILER}" = "g++-5" ]]; then
  - brew install gcc5
  - fi
  - if [[ "${COMPILER}" = "g++-6" ]]; then
  - brew install gcc6
  - brew link --overwrite gcc@6
  - fi
  - if [[ "${COMPILER}" = "g++-7" ]]; then
  - brew install gcc7
  - brew link --overwrite gcc@7
  - fi
  - if [[ "${COMPILER}" = "g++-8" ]]; then
  - brew install gcc8
  - brew link --overwrite gcc@8
  - fi
  fi
  - export CXX="${COMPILER}"
  