[Haml] Get rid of the #puts helper.

doc-src/HAML_CHANGELOG.md

@@ -149,6 +149,11 @@ that surrounds the filtered text with `<style>` and CDATA tags.
 * Multi-line ERB statements are now properly indented,
   and those without any content are removed.
 
+### Backwards Incompatibilities: Must Read!
+
+* The `puts` helper has been removed.
+  Use {Haml::Helpers#haml\_concat} instead.
+
 ## [2.2.17](http://github.com/nex3/haml/commit/2.2.16)
 
 * Fix compilation of HTML5 doctypes when using `html2haml`.
@@ -480,7 +485,7 @@ encoding errors when dealing with non-ASCII input data.
 This helper is being deprecated for the obvious reason
 that it conflicts with the `Kernel#puts` method.
 I'm ashamed I ever chose this name.
-Use `haml_tag` instead and spare me the embarrassment.
+Use `haml_concat` instead and spare me the embarrassment.
 
 #### `= haml_tag`
 

lib/haml/helpers.rb

@@ -338,17 +338,6 @@ MESSAGE
       haml_buffer.capture_position = nil
     end
 
-    # @deprecated This will be removed in version 2.4.
-    # @see #haml_concat
-    def puts(*args)
-      warn <<END
-DEPRECATION WARNING:
-The Haml #puts helper is deprecated and will be removed in version 2.4.
-Use the #haml_concat helper instead.
-END
-      haml_concat(*args)
-    end
-
     # Outputs text directly to the Haml buffer, with the proper indentation.
     #
     # @param text [#to_s] The text to output