Update comment.rb

Author: igorwwwwwwwwwwwwwwwwwwww

lib/marginalia/comment.rb

@@ -31,9 +31,6 @@ def self.construct_comment
     end
 
     def self.escape_sql_comment(str)
-      if str.include?('/*') || str.include?('*/')
-        str = str.dup
-      end
       while str.include?('/*') || str.include?('*/')
         str = str.gsub('/*', '').gsub('*/', '')
       end