Remove .coffee ext files for i18n

config/initializers/gettext_rails_i18n_patch.rb

@@ -33,7 +33,6 @@ module GettextI18nRailsJs
         [
           ".js",
           ".jsx",
-          ".coffee",
           ".vue"
         ].include? ::File.extname(file)
       end

lib/tasks/gettext.rake

@@ -5,7 +5,7 @@ namespace :gettext do
   # See: https://github.com/grosser/gettext_i18n_rails#customizing-list-of-translatable-files
   def files_to_translate
     folders = %W(app lib config #{locale_path}).join(',')
-    exts = %w(rb erb haml slim rhtml js jsx vue coffee handlebars hbs mustache).join(',')
+    exts = %w(rb erb haml slim rhtml js jsx vue handlebars hbs mustache).join(',')
 
     Dir.glob(
       "{#{folders}}/**/*.{#{exts}}"