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/draftutils/utils.py

@@ -40,7 +40,7 @@ import PySide.QtCore as QtCore
 
 import FreeCAD as App
 from draftutils import params
-from draftutils.messages import _msg, _wrn, _err, _log
+from draftutils.messages import  _wrn, _err, _log
 from draftutils.translate import translate
 
 # TODO: move the functions that require the graphical interface
@@ -1029,8 +1029,7 @@ def find_doc(doc=None):
         try:
             doc = App.getDocument(doc)
         except NameError:
-            _msg("document: {}".format(doc))
-            _err(translate("draft", "Wrong input: unknown document."))
+            _err(translate("draft", "Wrong input: unknown document {}").format(doc))
             return not FOUND, None
 
     return FOUND, doc