#4528 #4512 Fix script-locations when loading project and remove initScriptDirectories()

* Disable IO for scriptlocations and make sure we save it in preferences when editing
* The next valid case Id stuff in initDirectories is irrelevant because it always runs on an
  empty project

ApplicationCode/ProjectDataModel/RimCalcScript.cpp

@@ -37,9 +37,7 @@ RimCalcScript::RimCalcScript()
     CAF_PDM_InitObject("CalcScript", ":/OctaveScriptFile16x16.png", "Calc Script", "");
 
     CAF_PDM_InitField(&absoluteFileName, "AbsolutePath", QString(), "Location", "", "", "");
-    CAF_PDM_InitField(&content, "Content", QString(), "Directory", "", "", "");
-    RiaFieldhandleTools::disableWriteAndSetFieldHidden(&content);
-
+    
     absoluteFileName.uiCapability()->setUiEditorTypeName(caf::PdmUiFilePathEditor::uiEditorTypeName());
 }