Retire uci.h and benchmark.h

Moved the single prototipes where are needed.

No functional change.

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

src/uci.cpp

@@ -34,7 +34,6 @@
 #include "position.h"
 #include "san.h"
 #include "search.h"
-#include "uci.h"
 #include "ucioption.h"
 
 using namespace std;