ProjectExplorer: Fix warning about unnecessary std::move()

Apparently, the original warning about an allegedly missing move does
not appear anymore with current apple clang.

Change-Id: If3704b62e72765156fd3264267c98ea91b4d04c3
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/projectexplorer/msvcparser.cpp

@@ -61,7 +61,7 @@ static Task handleNmakeJomMessage(const QString &line)
 
     CompileTask task(type, line.mid(matchLength).trimmed());
     task.details << line;
-    return std::move(task);
+    return task;
 }
 
 static Task::TaskType taskType(const QString &category)