remove opal stuff

config/initializers/opal.rb

@@ -1,22 +0,0 @@
-# Check out the full list of the available configuration options at
-# https://github.com/opal/opal/blob/master/lib/opal/config.rb
-
-Rails.application.configure do
-  # We suggest keeping the configuration above as default for all environments,
-  # disabling some of them might slightly reduce the bundle size or reduce performance
-  # by degrading some ruby features.
-  config.opal.method_missing_enabled   = true
-  config.opal.const_missing_enabled    = true
-  config.opal.arity_check_enabled      = true
-  config.opal.freezing_stubs_enabled   = true
-  config.opal.dynamic_require_severity = :ignore
-
-  # To enable passing assigns from the controller to the opal template handler
-  # change the following configuration to one of these values:
-  #
-  #   - true    # both locals and instance variables
-  #   - :locals # only locals
-  #   - :ivars  # only instance variables
-  #
-  config.opal.assigns_in_templates = false
-end