CI: forget about Homebrew cache [ci skip]

.travis.yml

@@ -5,9 +5,6 @@ dist: bionic
 cache:
   directories:
   - vst/download/
-  # macOS Homebrew
-# - $HOME/Library/Caches/Homebrew
-# - /usr/local/Homebrew
 
 jobs:
   include:
@@ -58,11 +55,6 @@ jobs:
     - INSTALL_DIR="sfizz-${TRAVIS_BRANCH}-${TRAVIS_OS_NAME}-${TRAVIS_CPU_ARCH}"
     script: .travis/script_osx.sh
     after_success: .travis/prepare_osx.sh
-#   before_cache:
-#     - brew cleanup
-      # Credit https://discourse.brew.sh/t/best-practice-for-homebrew-on-travis-brew-update-is-5min-to-build-time/5215/9
-      # Cache only .git files under "/usr/local/Homebrew" so "brew update" does not take 5min every build
-#     - find /usr/local/Homebrew \! -regex ".+\.git.+" -delete
 
   - name: "MOD devices arm"
     env: