flask: drop dead compat translation code

Translation macros aren't used (and hence needed) at all (or else a
devicetree_label entry would have been missing), and userlist has been
removed quite some time ago.

No functional change.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

xen/include/xlat.lst

@@ -171,14 +171,11 @@
 ?	xenoprof_init			xenoprof.h
 ?	xenoprof_passive		xenoprof.h
 ?	flask_access			xsm/flask_op.h
-!	flask_boolean			xsm/flask_op.h
 ?	flask_cache_stats		xsm/flask_op.h
 ?	flask_hash_stats		xsm/flask_op.h
-!	flask_load			xsm/flask_op.h
 ?	flask_ocontext			xsm/flask_op.h
 ?	flask_peersid			xsm/flask_op.h
 ?	flask_relabel			xsm/flask_op.h
 ?	flask_setavc_threshold		xsm/flask_op.h
 ?	flask_setenforce		xsm/flask_op.h
-!	flask_sid_context		xsm/flask_op.h
 ?	flask_transition		xsm/flask_op.h

xen/xsm/flask/flask_op.c

@@ -790,8 +790,6 @@ CHECK_flask_transition;
 #define xen_flask_load compat_flask_load
 #define flask_security_load compat_security_load
 
-#define xen_flask_userlist compat_flask_userlist
-
 #define xen_flask_sid_context compat_flask_sid_context
 #define flask_security_context compat_security_context
 #define flask_security_sid compat_security_sid