Remove all references to Score type

Score is obsolete with the removal of psqt.

No functional change.

Signed-off-by: Cody Ho <codyho@stanford.edu>

closes https://github.com/official-stockfish/Stockfish/pull/4724

src/tune.h

@@ -51,18 +51,17 @@ struct SetRange {
 /// qualifiers from the variables you want to tune and flag them for tuning, so
 /// if you have:
 ///
-///   const Score myScore = S(10, 15);
 ///   const Value myValue[][2] = { { V(100), V(20) }, { V(7), V(78) } };
 ///
 /// If you have a my_post_update() function to run after values have been updated,
 /// and a my_range() function to set custom Option's min-max values, then you just
 /// remove the 'const' qualifiers and write somewhere below in the file:
 ///
-///   TUNE(SetRange(my_range), myScore, myValue, my_post_update);
+///   TUNE(SetRange(my_range), myValue, my_post_update);
 ///
 /// You can also set the range directly, and restore the default at the end
 ///
-///   TUNE(SetRange(-100, 100), myScore, SetDefaultRange);
+///   TUNE(SetRange(-100, 100), myValue, SetDefaultRange);
 ///
 /// In case update function is slow and you have many parameters, you can add:
 ///
@@ -98,7 +97,6 @@ class Tune {
 
     static_assert(   std::is_same<T,   int>::value
                   || std::is_same<T, Value>::value
-                  || std::is_same<T, Score>::value
                   || std::is_same<T, PostUpdate>::value, "Parameter type not supported!");
 
     Entry(const std::string& n, T& v, const SetRange& r) : name(n), value(v), range(r) {}