Remove category grouping from machine type dropdowns

Simplified machine type dropdowns to flat list without category
grouping. This removes dependency on the 'category' column in
machinetypes table which may not exist on all environments.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

savenetworkdevice.asp

@@ -199,9 +199,8 @@ If modelid = "new" Then
 
     ' Handle new machine type creation (nested)
     If newmodelmachinetypeid = "new" Then
-        Dim newmachinetypename, newmachinetypecategory
+        Dim newmachinetypename
         newmachinetypename = Trim(Request.Form("newmachinetypename"))
-        newmachinetypecategory = Trim(Request.Form("newmachinetypecategory"))
 
         If newmachinetypename = "" Then
             objConn.Close
@@ -209,19 +208,14 @@ If modelid = "new" Then
             Response.End
         End If
 
-        If newmachinetypecategory = "" Then
-            newmachinetypecategory = "Equipment"
-        End If
-
         ' Insert new machine type using parameterized query
         Dim sqlNewMT, cmdNewMT
-        sqlNewMT = "INSERT INTO machinetypes (machinetype, category, isactive) VALUES (?, ?, 1)"
+        sqlNewMT = "INSERT INTO machinetypes (machinetype, isactive) VALUES (?, 1)"
         Set cmdNewMT = Server.CreateObject("ADODB.Command")
         cmdNewMT.ActiveConnection = objConn
         cmdNewMT.CommandText = sqlNewMT
         cmdNewMT.CommandType = 1
         cmdNewMT.Parameters.Append cmdNewMT.CreateParameter("@machinetype", 200, 1, 50, newmachinetypename)
-        cmdNewMT.Parameters.Append cmdNewMT.CreateParameter("@category", 200, 1, 50, newmachinetypecategory)
 
         On Error Resume Next
         cmdNewMT.Execute