Remove undefined unused param.

Author: Ivan@Kruchkoff.com

feedwordpress.php

@@ -2289,7 +2289,7 @@ static function param( $key, $type = 'REQUEST', $default = null, $sanitizer = nu
 	} /* FeedWordPress::param () */
 
 	static function post( $key, $default = null, $sanitizer = null ) {
-		return self::sanitized_parameter( MyPHP::post( $key, $default, $type ), $sanitizer );
+		return self::sanitized_parameter( MyPHP::post( $key, $default ), $sanitizer );
 	} /* FeedWordPress::post () */
 
 	static function shallow_sanitize( $item, $sanitizer = null ) {