[gnome-boxes] Hide password entry if the VM is not password protected

[Marc-Andre Lureau <malureau src gnome org>]

commit c35334bf64f391ed7e59d746f629d5ecde9945f3
Author: Marc-Andrà Lureau <marcandre lureau gmail com>
Date:   Wed Nov 16 19:20:37 2011 +0100

    Hide password entry if the VM is not password protected
    
    https://bugzilla.gnome.org/show_bug.cgi?id=664216

 src/machine.vala |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/machine.vala b/src/machine.vala
index fb18bc9..26262e6 100644
--- a/src/machine.vala
+++ b/src/machine.vala
@@ -320,7 +320,7 @@ private class Boxes.MachineActor: Boxes.UI {
     }
 
     public void set_password_needed (bool needed) {
-        password_entry.set_sensitive (needed);
+        password_entry.visible = needed;
         password_entry.set_can_focus (needed);
         if (needed)
             password_entry.grab_focus ();
@@ -343,7 +343,6 @@ private class Boxes.MachineActor: Boxes.UI {
         switch (ui_state) {
         case UIState.CREDS:
             scale_screenshot (2.0f);
-            password_entry.show ();
             break;
 
         case UIState.DISPLAY: