Simplification in Text Helper's character_limiter()

Because the "\s" regex character class includes \r and \n,
there is no need for the str_replace() part
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 8a1f01b..76dc04a 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -89,7 +89,7 @@
 			return $str;
 		}
 
-		$str = preg_replace('/\s+/', ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str));
+		$str = preg_replace('/\s+/', ' ', $str);
 
 		if (strlen($str) <= $n)
 		{