Eliminate many "doing what you told me to" messages

These messages were perhaps originally intended as a debuggin aid but now add clutter to the output panes. Remaining messges are mostly the result of methods to display attributes of an object (which one could call from the Python console) or actually provide some information which would not be obvious from the circumstances

src/Mod/Draft/draftfunctions/downgrade.py

@@ -75,7 +75,6 @@ def downgrade(objects, delete=False, force=None):
     upgrade
     """
     _name = "downgrade"
-    utils.print_header(_name, "Downgrade objects")
 
     if not isinstance(objects, list):
         objects = [objects]