CppProjectUpdater: Remove unread attribute

Change-Id: I51123e5b5609de431cfa6d1558aed0b9739ff9c8
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/cpptools/cppprojectupdater.cpp

@@ -35,8 +35,7 @@
 
 namespace CppTools {
 
-CppProjectUpdater::CppProjectUpdater(ProjectExplorer::Project *project)
-    : m_project(project)
+CppProjectUpdater::CppProjectUpdater()
 {
     connect(&m_generateFutureWatcher, &QFutureWatcher<void>::finished,
             this, &CppProjectUpdater::onProjectInfoGenerated);