Remove references to webpacker

webpacker:compile rake task is unnecessary in Dockerfile because assets:compile will automatically do the same work
check_yarn_integrity config option no longer exists

Dockerfile

@@ -131,7 +131,6 @@ COPY --from=node-modules --chown=app:app /node_modules ./node_modules
 USER app
 ENV RAILS_ENV=production
 
-RUN SECRET_KEY_BASE=$(ruby -r 'securerandom' -e 'puts SecureRandom.hex(64)') bundle exec rake webpacker:compile
 RUN SECRET_KEY_BASE=$(ruby -r 'securerandom' -e 'puts SecureRandom.hex(64)') bundle exec rake assets:precompile
 RUN cp config/controlled_vocabulary.yml.example config/controlled_vocabulary.yml
 

config/environments/production.rb

@@ -4,7 +4,7 @@
  # Settings specified here will take precedence over those in config/application.rb.
 
  # Verifies that versions and hashed value of the package contents in the project's package.json
- config.webpacker.check_yarn_integrity = false
+ # config.webpacker.check_yarn_integrity = false
 
  # Code is not reloaded between requests.
  config.cache_classes = true