Revert "没必要sleep"

This reverts commit 739449d.

Author: sumneko

script/brave/brave.lua

@@ -17,6 +17,7 @@ local function channel_bpop(ctx)
                 return table.unpack(r, 2)
             end
         end
+        thread.sleep(10)
     end
 end
 

script/pub/pub.lua

@@ -19,6 +19,7 @@ local function channel_bpop(ctx)
                 return table.unpack(r, 2)
             end
         end
+        thread.sleep(10)
     end
 end