Revert C++11 merge

Restore the state of repo back to commit 'Simplify pawn code a bit' (1e6d21dbb6)

No functional change

src/misc.h

@@ -21,7 +21,6 @@
 #define MISC_H_INCLUDED
 
 #include <cassert>
-#include <chrono>
 #include <ostream>
 #include <string>
 #include <vector>
@@ -29,7 +28,8 @@
 #include "types.h"
 
 const std::string engine_info(bool to_uci = false);
-void prefetch(void* addr);
+void timed_wait(WaitCondition&, Lock&, int);
+void prefetch(char* addr);
 void start_logger(bool b);
 
 void dbg_hit_on(bool b);
@@ -37,19 +37,20 @@ void dbg_hit_on(bool c, bool b);
 void dbg_mean_of(int v);
 void dbg_print();
 
-typedef std::chrono::milliseconds::rep TimePoint; // A value in milliseconds
 
-inline TimePoint now() {
-  return std::chrono::duration_cast<std::chrono::milliseconds>
-        (std::chrono::steady_clock::now().time_since_epoch()).count();
+namespace Time {
+  typedef int64_t point;
+  inline point now() { return system_time_to_msec(); }
 }
 
+
 template<class Entry, int Size>
 struct HashTable {
+  HashTable() : table(Size, Entry()) {}
   Entry* operator[](Key key) { return &table[(uint32_t)key & (Size - 1)]; }
 
 private:
-  std::vector<Entry> table = std::vector<Entry>(Size);
+  std::vector<Entry> table;
 };