Remove EnhancedLinkedStep

For unlink prompt, remove ‘Cancel’ button (redundant)

PROMS/VEPROMS User Interface/frmVersionsProperties.cs

@@ -1431,7 +1431,7 @@ namespace VEPROMS
 		private bool _EnhNeedToUnlink = false;
 		private void btnUnlinkDocVersion_Click(object sender, EventArgs e)
 		{
-			if (MessageBox.Show(this, "Are you sure you want to Unlink? Your documents will no longer link to Enhanced.  NOTE that this processing occurs when 'OK' button is selected!", "Unlink", MessageBoxButtons.YesNoCancel) == DialogResult.Yes)
+			if (MessageBox.Show(this, "Are you sure you want to Unlink? Your documents will no longer link to Enhanced.  NOTE that this processing occurs when 'OK' button is selected!", "Unlink", MessageBoxButtons.YesNo) == DialogResult.Yes)
 			{
 				_EnhNeedToUnlink = true;		// do the unlink when 'OK' button is selected
 			}