Disable mean reward for new peers

Newly added peers where given a boost up to the mean score.
That gives too much of a bonus for them which means that they can out
compete usefull, but not top performing peers.

The code is commented out and the reward set to zero for now. In the
future we can decide what, if any, reward should be given to new peers.

ouroboros-network/src/Ouroboros/Network/PeerSelection/PeerMetric.hs

@@ -595,7 +595,8 @@ adjustAvg :: PeerMetricsConfiguration
           -> SlotNo       -- ^ current slot
           -> Int
           -> Int
-adjustAvg PeerMetricsConfiguration { maxEntriesToTrack } minSlotNo joinedSlotNo lastSlotNo avg
+adjustAvg _ _ _ _ _ = 0
+{-adjustAvg PeerMetricsConfiguration { maxEntriesToTrack } minSlotNo joinedSlotNo lastSlotNo avg
     -- when there are only a few results in the 'PeerMetricsState' we don't
     -- take into account the average.  This allows the system to start, without
     -- penalising the peers which we connected to early.
@@ -613,4 +614,4 @@ adjustAvg PeerMetricsConfiguration { maxEntriesToTrack } minSlotNo joinedSlotNo
     minSlot, lastSlot, joinedSlot :: Int
     minSlot    = maybe 1 slotToInt minSlotNo
     lastSlot   = slotToInt lastSlotNo
-    joinedSlot = slotToInt joinedSlotNo
+    joinedSlot = slotToInt joinedSlotNo -}