travis.yml: Homebrew with ruby 2.3 does nor run on OS X 10.10

tofi86 · tofi86 · commit a29951151d54 · 2018-04-12T00:36:50.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,9 +4,6 @@ language: generic
 # https://docs.travis-ci.com/user/reference/osx/#OS-X-Version
 matrix:
   include:
-    # OS X 10.10
-    - os: osx
-      osx_image: xcode6.4
     # OS X 10.11
     - os: osx
       osx_image: xcode8
