Removes key and its corresponding value from the preferences.

	// 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");
				}
		}
	}