ui: disk reassign: drop useless intermediate form

The form is basically a 1:1 copy from what the edit window gives us
for free already anyway, so just drop it.

best viewed with `git show -w`

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

www/manager6/window/GuestDiskReassign.js

@@ -120,15 +120,6 @@ Ext.define('PVE.window.GuestDiskReassign', {
     },
 
     defaultFocus: 'sourceDisk',
-    items: [
-	{
-	    xtype: 'form',
-	    reference: 'moveFormPanel',
-	    border: false,
-	    fieldDefaults: {
-		labelWidth: 100,
-		anchor: '100%',
-	    },
     items: [
 	{
 	    xtype: 'displayfield',
@@ -250,8 +241,6 @@ Ext.define('PVE.window.GuestDiskReassign', {
 	    ],
 	},
     ],
-	},
-    ],
 
     initComponent: function() {
 	let me = this;