Remove dead code

src/libstore/remote-store.cc

@@ -133,8 +133,6 @@ RemoteStore::~RemoteStore()
     try {
         to.flush();
         fdSocket.close();
-        if (child != -1)
-            child.wait(true);
     } catch (...) {
         ignoreException();
     }

src/libstore/remote-store.hh

@@ -87,7 +87,6 @@ private:
     AutoCloseFD fdSocket;
     FdSink to;
     FdSource from;
-    Pid child;
     unsigned int daemonVersion;
     bool initialised;