conf: disable portal.rt for pipewire and pipewire-pulse

Thse should not be portal clients and can go directly to rtkit.

The reason is that there is a locking problem in the portal rt
implementation that cause timeouts for some reason.

src/daemon/pipewire-avb.conf.in

@@ -30,6 +30,11 @@ context.modules = [
             #rt.prio      = @rtprio_client@
             #rt.time.soft = -1
             #rt.time.hard = -1
+            #rlimits.enabled = true
+            #rtportal.enabled = true
+            #rtkit.enabled = true
+            #uclamp.min = 0
+            #uclamp.max = 1024
         }
         flags = [ ifexists nofail ]
     }