Remove explicit installation of Google Cloud SDK

gcloud components update is failing in current builds

latest gcloud may be available on Travis

try removing gcloud installation from .travis.yml

Author: remi Taylor

.travis.yml

@@ -28,7 +28,6 @@ cache:
 
 env:
   global:
-  - PATH=$PATH:$HOME/gcloud/google-cloud-sdk/bin
   - GOOGLE_APPLICATION_CREDENTIALS=$TRAVIS_BUILD_DIR/client_secrets.json
   matrix:
   - TEST_DIR=storage
@@ -39,30 +38,8 @@ env:
   - TEST_DIR=appengine/endpoints
 
 before_install:
-#ENCRYPT YOUR PRIVATE KEY (If you need authentication)
-# 1. Install and login to the Travis CLI:
-#       $ gem install travis
-#       $ travis login
-# 2. Move your json private key to client_secrets.json
-# 3. Run:
-#       $ travis encrypt-file client_secrets.json --add
-# 4. Commit changes:
-#       $ git add client_secrets.json.enc
-#       $ git commit client_secrets.json.enc .travis.yml
 - openssl aes-256-cbc -K $encrypted_aeb4e2af7332_key -iv $encrypted_aeb4e2af7332_iv
   -in client_secrets.json.enc -out client_secrets.json -d
-- if [ ! -d $HOME/gcloud/google-cloud-sdk ]; then
-  mkdir -p $HOME/gcloud &&
-  wget https://dl.google.com/dl/cloudsdk/release/google-cloud-sdk.tar.gz --directory-prefix=$HOME/gcloud &&
-  cd $HOME/gcloud &&
-  tar xzf google-cloud-sdk.tar.gz &&
-  printf '\ny\n\ny\ny\n' | ./google-cloud-sdk/install.sh &&
-  cd $TRAVIS_BUILD_DIR;
-  fi
-- gcloud -q components update
-- if [ -a client_secrets.json ]; then
-  gcloud -q auth activate-service-account --key-file client_secrets.json;
-  fi
 
 install:
 - cd $TEST_DIR