FEM: delete no longer needed EditorMode Setting

the properties are set to read only in the C++ constructor allready.
See commit 1a8c643d50

src/Mod/Fem/FemTools.py

@@ -469,7 +469,6 @@ class FemTools(QtCore.QRunnable, QtCore.QObject):
         for m in self.analysis.Member:
             if m.isDerivedFrom("Fem::FemResultObject") and m.Eigenmode > 0:
                     m.EigenmodeFrequency = mode_frequencies[m.Eigenmode - 1]['frequency']
-                    m.setEditorMode("EigenmodeFrequency", 1)
 
     def use_results(self, results_name=None):
         for m in self.analysis.Member:

src/Mod/Fem/ccxFrdReader.py

@@ -401,8 +401,6 @@ def importFrd(filename, analysis=None):
                 if eigenmode_number > 0:
                     results.StressValues = map((lambda x: x * scale), mstress)
                     results.Eigenmode = eigenmode_number
-                    results.setEditorMode("Eigenmode", 1)
-
                 else:
                     results.StressValues = mstress