revert force core dump

receiver/src/receiver.cpp

 #include <iostream>
 #include <utility>
-#include <signal.h>
-#include <unistd.h>
 #include "receiver.h"
 #include "receiver_error.h"
 #include "connection.h"
@@ -34,10 +32,6 @@ void Receiver::Listen(std::string listener_address, Error* err, bool exit_after_
         return;
     }
 
-    if(!fork()) {
-        raise (SIGABRT);
-    }
-
     while(true) {
         ProcessConnections(err);
         if (exit_after_first_connection) break;