EditorPrefs.DeleteKey  

static function DeleteKey (key : String) : void

Description

Removes key and its corresponding value from the preferences.

Removes a user entered editor preference, if it doesnt exists it prints a message.

// Removes a user entered editor preference, if it doesnt exists it prints a message.

class RemoveSpecificEditorPrefs extends EditorWindow {

    var editorPref : String = "";

    @MenuItem("Examples/Remove specific editor key pref.")
    static function Init() {
        var window = GetWindow(RemoveSpecificEditorPrefs);
        window.Show();
    }

    function OnGUI() {
        editorPref = EditorGUILayout.TextField("Editor key name:",editorPref);
        if(GUILayout.Button("Delete"))
            if(EditorPrefs.HasKey(editorPref)) {
                if(EditorUtility.DisplayDialog("Removing " + editorPref + "?",
                    "Are you sure you want to
                    delete the editor key " +
                    editorPref + "?, This action cant be undone",
                    "Yes",
                    "No"))
                        EditorPrefs.DeleteKey(editorPref);
            } else {
                EditorUtility.DisplayDialog("Couldnt find " + editorPref,
                    "Seems that " + editorPref +
                    " doesnt exists or it has been deleted already,
                    check that you have typed correctly the name of the key.",
                    "Ok");
            }
    }
}