Remove essentially unused code

vondele · snicolet · commit bbf9daa175fc · 2018-09-27T21:28:38.000+02:00
this was added recently as part of a larger commit, but only changes eval of positions at MAX_PLY depth a little. Can be safely removed: passed STC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 7424 W: 1640 L: 1492 D: 4292 http://tests.stockfishchess.org/html/live_elo.html?5ba3bcbe0ebc592cf27677ff passed LTC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 73554 W: 12028 L: 11990 D: 49536 http://tests.stockfishchess.org/html/live_elo.html?5ba397ee0ebc592cf2767556 unchanged Bench: 4248710
diff --git a/src/search.cpp b/src/search.cpp
@@ -584,8 +584,7 @@ namespace {
         if (   Threads.stop.load(std::memory_order_relaxed)
             || pos.is_draw(ss->ply)
             || ss->ply >= MAX_PLY)
-            return (ss->ply >= MAX_PLY && !inCheck) ? evaluate(pos) - 10 * ((ss-1)->statScore > 0)
-                                                    : VALUE_DRAW;
+            return (ss->ply >= MAX_PLY && !inCheck) ? evaluate(pos) : VALUE_DRAW;
 
         // Step 3. Mate distance pruning. Even if we mate at the next move our score
         // would be at best mate_in(ss->ply+1), but if alpha is already bigger because
