ncm-sysctl: Deprecate compat-v1 as having no effect

The code was removed pre-2008

ncm-sysctl/src/main/pan/components/sysctl/schema.pan

@@ -16,7 +16,7 @@ type component_sysctl_structure = {
     include structure_component
 
     'command' : string = '/usr/sbin/sysctl' with match(SELF, '^/.+')
-    'compat-v1' : boolean = false
+    'compat-v1' ? boolean with deprecated(0, 'compat-v1 has no effect and will be removed in a future release')
     'confFile' : string = '/etc/sysctl.conf' with match(SELF, '^(/.+|[^/]+)\.conf$') # disallow / unless an absolute path is supplied.
     'variables' ? string{}
 };