Fix some Clang warnings

Found by Clang in extra verbose mode :-)

No functional change.

src/evaluate.cpp

@@ -78,7 +78,7 @@ namespace {
 
   public:
     Evaluation() = delete;
-    Evaluation(const Position& p) : pos(p) {};
+    Evaluation(const Position& p) : pos(p) {}
     Evaluation& operator=(const Evaluation&) = delete;
 
     Value value();

src/search.cpp

@@ -134,8 +134,8 @@ namespace {
       }
     }
 
-    int stableCnt;
     Key expectedPosKey;
+    int stableCnt;
     Move pv[3];
   };
 

src/types.h

@@ -128,7 +128,7 @@ enum MoveType {
 };
 
 enum Color {
-  WHITE, BLACK, NO_COLOR, COLOR_NB = 2
+  WHITE, BLACK, COLOR_NB = 2
 };
 
 enum CastlingSide {