Removing $reduce_linebreaks in auto_typography helper. Fixes #1642

I researched this back to a commit by @derekjones but couldn't find any history on what the reason for it was or why it was even added.

Signed-off-by: Eric Barnes <eric@ericlbarnes.com>
diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php
index af9d16a..9dbba06 100644
--- a/system/helpers/typography_helper.php
+++ b/system/helpers/typography_helper.php
@@ -65,11 +65,11 @@
 	 * @param	bool	whether to reduce multiple instances of double newlines to two
 	 * @return	string
 	 */
-	function auto_typography($str, $strip_js_event_handlers = TRUE, $reduce_linebreaks = FALSE)
+	function auto_typography($str, $reduce_linebreaks = FALSE)
 	{
 		$CI =& get_instance();
 		$CI->load->library('typography');
-		return $CI->typography->auto_typography($str, $strip_js_event_handlers, $reduce_linebreaks);
+		return $CI->typography->auto_typography($str, $reduce_linebreaks);
 	}
 }