rm unneeded conversion deg->rad in makeFrame()

GUI/Model/Device/InstrumentItems.cpp

@@ -419,12 +419,7 @@ Frame SpecularInstrumentItem::makeFrame() const
             });
             return Frame(std::move(ax.clone()));
 
-        } else if (pAxis->unit() == "deg") {
-            Scale ax = pAxis->transformedScale(Coordinate(pAxis->coordName(), "rad").label(),
-                                               Units::deg2rad);
-            return Frame(std::move(ax.clone()));
         }
-
         Scale* ax0 = pAxis->clone();
         std::vector<const Scale*> f{ax0};
         return Frame(f);