Unify doc-strings (remove type/rtype)

As this information is already provided in type hints and we don't need to maintain it in two places.

src/ifcopenshell-python/ifcopenshell/api/system/connect_port.py

@@ -52,9 +52,7 @@ def connect_port(
     and implicit connectivity is preferred for early phase design.
 
     :param port1: The port of the first distribution element to connect.
-    :type port1: ifcopenshell.entity_instance
     :param port2: The port of the second distribution element to connect.
-    :type port2: ifcopenshell.entity_instance
     :param direction: The directionality of distribution flow through the
         port connection. NOTDEFINED means that the direction has not yet
         been determined. This is useful during preliminary system design.
@@ -63,12 +61,10 @@ def connect_port(
         first element. SOURCEANDSINK means that flow is bi-directional
         between the first and second element.  SOURCEANDSINK is a relatively
         rare scenario.
-    :type direction: str
     :param element: Optionally set an element through which the port
         connectivity is made, such as a segment or fitting. This is only to
         be used for implicit port connectivity where the segments and
         fittings are less important.
-    :type element: ifcopenshell.entity_instance, optional
 
     Example:
 

src/ifcopenshell-python/ifcopenshell/api/system/disconnect_port.py

@@ -28,9 +28,7 @@ def disconnect_port(file: ifcopenshell.file, port: ifcopenshell.entity_instance)
     needed to be specified.
 
     :param port: The IfcDistributionPort to disconnect.
-    :type port: ifcopenshell.entity_instance
     :return: None
-    :rtype: None
 
     Example: