Retire UCI_AnalyseMode option

It has been obsoleted out already some time ago
and currently there is no point in changing eval
score according to if we are in game or analyzing.

So retire the option.

No functional change.

polyglot.ini

@@ -44,4 +44,3 @@ Emergency Move Time = 70
 Minimum Thinking Time = 20
 Slow Mover = 100
 UCI_Chess960 = false
-UCI_AnalyseMode = false

src/search.cpp

@@ -185,6 +185,11 @@ void Search::think() {
   RootColor = RootPos.side_to_move();
   TimeMgr.init(Limits, RootPos.game_ply(), RootColor);
 
+  // Dynamic draw value: try to avoid repetition draws at early midgame
+  int cf = std::max(70 - RootPos.game_ply(), 0);
+  DrawValue[ RootColor] = VALUE_DRAW - Value(cf);
+  DrawValue[~RootColor] = VALUE_DRAW + Value(cf);
+
   if (RootMoves.empty())
   {
       RootMoves.push_back(MOVE_NONE);
@@ -206,16 +211,6 @@ void Search::think() {
       }
   }
 
-  if (!Options["UCI_AnalyseMode"])
-  {
-      // Dynamic draw value: try to avoid repetition draws at early midgame
-      int cf = std::max(70 - RootPos.game_ply(), 0);
-      DrawValue[ RootColor] = VALUE_DRAW - Value(cf);
-      DrawValue[~RootColor] = VALUE_DRAW + Value(cf);
-  }
-  else
-      DrawValue[WHITE] = DrawValue[BLACK] = VALUE_DRAW;
-
   if (Options["Write Search Log"])
   {
       Log log(Options["Search Log Filename"]);

src/ucioption.cpp

@@ -85,7 +85,6 @@ void init(OptionsMap& o) {
   o["Minimum Thinking Time"]       = Option(20, 0, 5000);
   o["Slow Mover"]                  = Option(80, 10, 1000);
   o["UCI_Chess960"]                = Option(false);
-  o["UCI_AnalyseMode"]             = Option(false, on_eval);
 }