diff --git a/docs/source/todo.rst b/docs/source/todo.rst
index 4dcd7184d..57bac962a 100644
--- a/docs/source/todo.rst
+++ b/docs/source/todo.rst
@@ -7,8 +7,6 @@ TODO
 Future Things and Ideas
 ^^^^^^^^^^^^^^^^^^^^^^^
 
-- adjust builtin function call convention to also use X register? see class FSignature.
-- adjust funcion call convention for regular subroutines too?  Can it reuse the CallConvention class here? can it also start using the X register? see optimizeIntArgsViaRegisters()
 - implement const long to store a 32 bit signed integer value. (constants should be able to be long?) -> const_long branch
 - get rid of the BuiltinFunctionCall (and PtBuiltinFunctionCall)  ast nodes distinction, just use 1 node type, they're mixed up now already anyways. -> remove-BFC-node branch
 - something to reduce the need to use fully qualified names all the time. 'with' ?  Or 'using <prefix>'?