Revert "Support Rails 6 asset recompilation through webpacker (#656)"

This reverts commit 5f413c2.

spec/support/outputs/rails_assets_precompile.txt

@@ -1 +1 @@
-if\ diff\ \-qrN\ ".*/deploy/current/vendor/assets/"\ "\./vendor/assets/"\ 2>/dev/null\ &&\ diff\ \-qrN\ ".*/deploy/current/app/assets/"\ "\./app/assets/"\ 2>/dev/null\ &&\ diff\ \-qrN\ ".*/deploy/current/app/javascript/"\ "\./app/javascript/"\ 2>/dev/null &&\ diff\ \-qrN\ ".*/deploy/current/package.json"\ "\./package.json"\ 2>/dev/null\s*then\s*echo\ "\-\-\-\-\->\ Skipping\ asset\ precompilation"\s*else\s*echo\ "\-\-\-\-\->\ Precompiling\ asset\ files"\s*RAILS_ENV="production"\ bundle\ exec\ rake\ assets:precompile\s*fi
+if\ diff\ \-qrN\ ".*/deploy/current/vendor/assets/"\ "\./vendor/assets/"\ 2>/dev/null\ &&\ diff\ \-qrN\ ".*/deploy/current/app/assets/"\ "\./app/assets/"\ 2>/dev/null\s*then\s*echo\ "\-\-\-\-\->\ Skipping\ asset\ precompilation"\s*else\s*echo\ "\-\-\-\-\->\ Precompiling\ asset\ files"\s*RAILS_ENV="production"\ bundle\ exec\ rake\ assets:precompile\s*fi

tasks/mina/rails.rb

@@ -7,11 +7,11 @@
 set :bundle_prefix, -> { %(RAILS_ENV="#{fetch(:rails_env)}" #{fetch(:bundle_bin)} exec) }
 set :rake, -> { "#{fetch(:bundle_prefix)} rake" }
 set :rails, -> { "#{fetch(:bundle_prefix)} rails" }
-set :compiled_asset_path, ['public/assets', 'public/packs']
-set :asset_dirs, ['vendor/assets/', 'app/assets/', 'app/javascript/', 'package.json']
+set :compiled_asset_path, 'public/assets'
+set :asset_dirs, ['vendor/assets/', 'app/assets/']
 set :migration_dirs, ['db/migrate']
 
-set :shared_dirs, fetch(:shared_dirs, []).push('log', 'tmp/cache', 'node_modules', *fetch(:compiled_asset_path))
+set :shared_dirs, fetch(:shared_dirs, []).push('log', 'tmp/cache', fetch(:compiled_asset_path))
 
 desc 'Starts an interactive console.'
 task :console do