Disable OSX Travis CI builds

The backlog is way too long...

.travis.yml

@@ -4,7 +4,6 @@ language: rust
 
 os:
 - linux
-- osx
 
 rust:
 - nightly
@@ -19,10 +18,6 @@ addons:
     - libdw-dev
     - binutils-dev
 
-before_install:
-- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
-- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install python || true; fi
-
 before_script:
 - pip install -v 'travis-cargo<0.2' --user
 - if [[ -e ~/Library/Python/2.7/bin ]]; then export PATH=~/Library/Python/2.7/bin:$PATH; fi
@@ -37,9 +32,9 @@ script:
   travis-cargo --only stable doc
 
 after_success:
-- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then travis-cargo --only stable doc-upload; fi
-- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then travis-cargo coveralls --no-sudo --verify; fi
-- if [[ "$TRAVIS_OS_NAME" == "linux" && "$TRAVIS_RUST_VERSION" == "nightly" ]]; then KCOV=./kcov/build/src/kcov ./coverage; fi
+- travis-cargo --only stable doc-upload
+- travis-cargo coveralls --no-sudo --verify
+- if [[ "$TRAVIS_RUST_VERSION" == "nightly" ]]; then KCOV=./kcov/build/src/kcov ./coverage; fi
 
 env:
   global: