net: Minor accumulated cleanups

src/bitcoind.cpp

@@ -42,12 +42,9 @@
 
 void WaitForShutdown()
 {
-    bool fShutdown = ShutdownRequested();
-    // Tell the main threads to shutdown.
-    while (!fShutdown)
+    while (!ShutdownRequested())
     {
         MilliSleep(200);
-        fShutdown = ShutdownRequested();
     }
     Interrupt();
 }