Redirect errors to null when disabling protocols, some RC devs don't support lirc

Signed-off-by: Jarod Wilson <jarod@redhat.com>

lirc.init

@@ -83,7 +83,7 @@ start() {
             rcs=$(find -L /sys/class/rc/ -maxdepth 2 -name protocols 2> /dev/null)
             for rc in $rcs
             do
-                echo lirc > ${rc}
+                (echo lirc > ${rc}) 2> /dev/null
             done
         fi
     fi
@@ -115,7 +115,7 @@ stop() {
         protos=$(cat ${rc})
         for p in $protos
         do
-            echo "+${p}" > ${rc}
+            (echo "+${p}" > ${rc}) 2> /dev/null
         done
     done