remove p2 install/update preference in menu tools

Question

I must remove the install/update preference in the menu Tools' preferences. How can I do? Thank to everybody.

Answer 1

public void postStartup() {
  PreferenceManager pm = PlatformUI.getWorkbench().getPreferenceManager( );
  pm.remove("org.eclipse.equinox.internal.p2.ui.sdk.ProvisioningPreferencePage"); 
  pm.remove("org.eclipse.update.internal.ui.preferences.MainPreferencePage");
}