linux build fix

ws/ixcrypto/IXHash.h

@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <vector>
 
 namespace ix

ws/ws.cpp

@@ -110,10 +110,6 @@ int main(int argc, char** argv)
     {
         return ix::ws_ping_pong_main(url);
     }
-    else
-    {
-        assert(false);
-    }
 
     return 1;
 }