diff --git a/lib/marked.js b/lib/marked.js
index 94e403d3..a4455d37 100644
--- a/lib/marked.js
+++ b/lib/marked.js
@@ -284,24 +284,8 @@ var inline = {
   link: /^!?\[((?:\[[^\]]*\]|[^\[\]]|\[|\](?=[^[\]]*\]))*)\]\(([^\)]*)\)/,
   reflink: /^!?\[((?:\[[^\]]*\]|[^\[\]]|\[|\](?=[^[\]]*\]))*)\]\s*\[([^\]]*)\]/,
   nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
-
-  // discount em/strong behavior
-  // strong: /^__([^\0]+?)__(?!_)|^\*\*([^\0]+?)\*\*(?!\*)/,
-  // em: /^\b_(?=\S)([^\0]*?\S)_\b|^\*(?=\S)([^\0]*?(?:\*\*|[^\s*]))\*(?!\*)/,
-
-  // markdown.js em/strong behavior
   strong: /^__([^\0]+?)__(?!_)|^\*\*([^\0]+?)\*\*(?!\*)/,
   em: /^\b_([^\0]+?)_\b|^\*((?:\*\*|[^\0])+?)\*(?!\*)/,
-
-  // upskirt/markdown.pl em/strong behavior
-  // strong: /^__(?=\S)([^\0]*?\S)__(?!_)|^\*\*(?=\S)([^\0]*?\S)\*\*(?!\*)/,
-  // em: /^\b_(?=\S)([^\0]*?\S)_\b|^\*(?=\S)([^\0]*?\S)\*(?!\*)/,
-
-  // strict em/strong behavior
-  // closest to being conformant without markdown.pl's bugs
-  // strong: /^__(?=\S)([^\0]*?\S)__(?!_)|^\*\*(?=\S)([^\0]*?\S)\*\*(?!\*)/,
-  // em: /^\b_(?=\S)([^\0]*?\S)_\b|^\*(?=\S)([^\0]*?(?:\*\*|[^\s*]))\*(?!\*)/,
-
   code: /^(`+)([^\0]*?[^`])\1(?!`)/,
   br: /^ {2,}\n(?!\s*$)/,
   text: /^[^\0]+?(?=body|$)/