Remove duplicate line

Tristan Davies · Tristan Davies · commit 6c2bef2f6d75 · 2015-01-10T08:28:28.000-05:00
diff --git a/html-css-javascript-an-eternal-rgb-triple-rainbo.md b/html-css-javascript-an-eternal-rgb-triple-rainbo.md
@@ -129,8 +129,6 @@ There are two basic ways to identify an element:
 * uniquely
 * classically 
 
-These are done by adding id and class attributes
-
 These are done by adding id and class properties
 
 This is done looking like this:
