Tracker: get rid of fTrashContextMenu member from DeskWindow...

... as it's useless and shadowing the one in ContainerWindow.
No functional change intended, and none occurs (from my testing).

PVS message V703.

src/kits/tracker/DeskWindow.cpp

@@ -194,7 +194,6 @@ BDeskWindow::BDeskWindow(LockingList<BWindow>* windowList)
 			| B_NOT_RESIZABLE | B_ASYNCHRONOUS_CONTROLS, B_ALL_WORKSPACES,
 			false, true),
 	fDeskShelf(NULL),
-	fTrashContextMenu(NULL),
 	fNodeRef(NULL),
 	fShortcutsSettings(NULL)
 {
@@ -395,9 +394,6 @@ BDeskWindow::Quit()
 	fAddonsList->MakeEmpty(true);
 	delete fAddonsList;
 
-	delete fTrashContextMenu;
-	fTrashContextMenu = NULL;
-
 	delete fDeskShelf;
 	_inherited::Quit();
 }

src/kits/tracker/DeskWindow.h

@@ -83,7 +83,6 @@ private:
 
 	BShelf* fDeskShelf;
 		// shelf for replicant support
-	BPopUpMenu* fTrashContextMenu;
 
 	BRect fOldFrame;