Clang: Remove pointless member variable

The called function uses already static state.

Change-Id: I22c6cceea6c0c779c4b8ca94b74e0828e27b1f4e
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

src/plugins/clangcodemodel/clangbackendipcintegration.cpp

@@ -112,7 +112,6 @@ static bool printAliveMessage()
 }
 
 IpcReceiver::IpcReceiver()
-    : m_printAliveMessage(printAliveMessage())
 {
 }
 
@@ -176,7 +175,7 @@ bool IpcReceiver::isExpectingCodeCompletedMessage() const
 
 void IpcReceiver::alive()
 {
-    if (m_printAliveMessage)
+    if (printAliveMessage())
         qCDebug(log) << "<<< AliveMessage";
     QTC_ASSERT(m_aliveHandler, return);
     m_aliveHandler();