Remove InfiniteSearch hack

With current search control system, I can see absolutely no
reason to classify fixed time search as infinite search.

So remove old dated hack

Signed-off-by: Marco Costalba <mcostalba@gmail.com>

src/search.cpp

@@ -850,7 +850,7 @@ namespace {
 
     // If we are pondering or in infinite search, we shouldn't print the
     // best move before we are told to do so.
-    if (!AbortSearch && !ExactMaxTime && (PonderSearch || InfiniteSearch))
+    if (!AbortSearch && (PonderSearch || InfiniteSearch))
         wait_for_stop_or_ponderhit();
     else
         // Print final search statistics

src/uci.cpp

@@ -298,9 +298,6 @@ namespace {
         }
     }
 
-    if (moveTime)
-        infinite = true;  // HACK
-
     assert(RootPosition.is_ok());
 
     return think(RootPosition, infinite, ponder, RootPosition.side_to_move(),