coverity#735398 Logically dead code

Change-Id: Iadb7fbd8a1fb1c535a3ed78d4b2f7120b29aeb75
Reviewed-on: https://gerrit.libreoffice.org/2270Reviewed-by: Tor Lillqvist <tml@iki.fi>
Tested-by: Tor Lillqvist <tml@iki.fi>

basic/source/comp/codegen.cxx

@@ -233,8 +233,8 @@ void SbiCodeGen::Save()
                     case PROPERTY_MODE_SET:
                         ePropType = SbxOBJECT;
                         break;
-                    case PROPERTY_MODE_NONE:
-                        OSL_FAIL( "Illegal PropertyMode PROPERTY_MODE_NONE" );
+                    default:
+                        OSL_FAIL("Illegal PropertyMode");
                         break;
                     }
                     OUString aPropName = pProc->GetPropName();