xen: remove XEN_SYSCTL_set_parameter support

The functionality of XEN_SYSCTL_set_parameter is available via hypfs
now, so it can be removed.

This allows to remove the kernel_param structure for runtime parameters
by putting the now only used structure element into the hypfs node
structure of the runtime parameters.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

tools/flask/policy/modules/dom0.te

@@ -16,7 +16,7 @@ allow dom0_t xen_t:xen {
 allow dom0_t xen_t:xen2 {
 	resource_op psr_cmt_op psr_alloc pmu_ctrl get_symbol
 	get_cpu_levelling_caps get_cpu_featureset livepatch_op
-	coverage_op set_parameter
+	coverage_op
 };
 
 # Allow dom0 to use all XENVER_ subops that have checks.