Removing unused commands from buildspec.yaml

Author: marcelomilera

buildspec.yml

@@ -13,13 +13,10 @@ phases:
     commands:
       - n 16
       - npm update -g npm
-      - npm install -g yarn
       - curl -sL https://sentry.io/get-cli/ | bash
       - aws --version
       - node -v
-      - yarn -v
       - sentry-cli --version
-      - yarn install --frozen-lockfile --production=false
   pre_build:
     commands:
       - export APP_BUILD_VERSION=${CODEBUILD_RESOLVED_SOURCE_VERSION}__$(date -u '+%Y-%m-%dT%T+00:00')