1 files changed, 3 insertions, 6 deletions
diff --git a/lib/axlsx/stylesheet/cell_protection.rb b/lib/axlsx/stylesheet/cell_protection.rb
index b874b214..4309b0e8 100644
--- a/lib/axlsx/stylesheet/cell_protection.rb
+++ b/lib/axlsx/stylesheet/cell_protection.rb
@@ -27,17 +27,14 @@ module Axlsx
     # @see locked
     def locked=(v) Axlsx::validate_boolean v; @locked = v end
 
+    # Serializes the object
+    # @param [String] str
+    # @return [String]
     def to_xml_string(str = '')
       str << '<protection '
       str << instance_values.map { |key, value| '' << key.to_s << '="' << value.to_s << '"' }.join(' ')
       str << '/>'
     end
 
-    # Serializes the cell protection
-    # @param [Nokogiri::XML::Builder] xml The document builder instance this objects xml will be added to.
-    # @return [String]
-    def to_xml(xml)
-      xml.protection(self.instance_values)
-    end
   end
 end