Fixed error in form_textarea helper function

Reverted from GitHub edited version to remove document line end
character.  Good to merge now.
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index 692909c..fd9e7be 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -261,7 +261,6 @@
 			unset($data['value']); // textareas don't use the value attribute
 		}
 
-		$name = is_array($data) ? $data['name'] : $data;
 		return '<textarea '._parse_form_attributes($data, $defaults).$extra.'>'.form_prep($val, TRUE)."</textarea>\n";
 	}
 }