QHttpNetworkConnectionChannel::sendRequest: drop return type

We never used the bool return anywhere.

Change-Id: I7855ee6b8443a0d1fe66177a7fa2bc7568621368
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>

src/network/access/qhttpnetworkconnectionchannel.cpp

@@ -223,14 +223,14 @@ void QHttpNetworkConnectionChannel::abort()
 }
 
 
-bool QHttpNetworkConnectionChannel::sendRequest()
+void QHttpNetworkConnectionChannel::sendRequest()
 {
     Q_ASSERT(protocolHandler);
     if (waitingForPotentialAbort) {
         needInvokeSendRequest = true;
-        return false; // this return value is unused
+        return;
     }
-    return protocolHandler->sendRequest();
+    protocolHandler->sendRequest();
 }
 
 /*

src/network/access/qhttpnetworkconnectionchannel_p.h

@@ -140,7 +140,7 @@ public:
     void close();
     void abort();
 
-    bool sendRequest();
+    void sendRequest();
     void sendRequestDelayed();
 
     bool ensureConnection();