Draft: Eliminate redundant assignment to self (#22006)

* Draft: Eliminate redundant assignment to self

* Removed confusing comment.

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Co-authored-by: Roy-043 <70520633+Roy-043@users.noreply.github.com>

src/Mod/Draft/draftgeoutils/offsets.py

@@ -338,8 +338,6 @@ def offsetWire(wire, dvec, bind=False, occ=False,
 
     if not isinstance(basewireOffset, list):
         basewireOffset = [basewireOffset]
-    else:
-        basewireOffset = basewireOffset  # for backward compatibility
 
     for i in range(len(edges)):
         # make a copy so it do not reverse the self.baseWires edges