Disable failing OSX build on travis

Since we have Azure maybe someone will have better luck with it.

.travis.yml

@@ -22,17 +22,17 @@ jobs:
           compiler: clang
           install: "docker pull rpcs3/rpcs3-travis-xenial:1.2"
           script: 'travis_wait docker run -v $(pwd):/rpcs3 -v "$HOME/.ccache":/root/.ccache --env-file .travis/travis.env rpcs3/rpcs3-travis-xenial:1.2 /bin/bash -ex /rpcs3/.travis/build-linux.bash'
-        - os: osx
-          osx_image: xcode11.3
-          addons:
-            homebrew:
-                packages:
-                    - ccache
-                    - glew
-                    - ninja
-                    - qt
-          script: "/bin/bash -ex .travis/build-mac.bash"
-          cache: ccache
+        # - os: osx
+        #   osx_image: xcode11.3
+        #   addons:
+        #     homebrew:
+        #         packages:
+        #             - ccache
+        #             - glew
+        #             - ninja
+        #             - qt
+        #   script: "/bin/bash -ex .travis/build-mac.bash"
+        #   cache: ccache
     allow_failures:
         - os: osx