Revert "Add quotes to Numeric Passwords to force string(jdbcmysql)"

This reverts commit 2f0311d7.

railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml

@@ -12,8 +12,6 @@ development:
   adapter: mysql
   database: <%= app_name %>_development
   username: root
-  # Remember to use quotes incase of numeric passwords to force string type to yaml parser
-  # for example, use "123456" instead of 123456
   password:
   host: localhost