Normalize Whitespace: Removed unnecessary checks (#3017)

Author: RunDevelopment

plugins/normalize-whitespace/prism-normalize-whitespace.js

@@ -1,6 +1,6 @@
 (function () {
 
-	if (typeof Prism === 'undefined' || typeof document === 'undefined') {
+	if (typeof Prism === 'undefined') {
 		return;
 	}
 
@@ -124,11 +124,6 @@
 		module.exports = NormalizeWhitespace;
 	}
 
-	// Exit if prism is not loaded
-	if (typeof Prism === 'undefined') {
-		return;
-	}
-
 	Prism.plugins.NormalizeWhitespace = new NormalizeWhitespace({
 		'remove-trailing': true,
 		'remove-indent': true,