Don't notify about changing to the same state it was at

Summary:
The object tracker was telling me it's notifying the same value it
already got, and reading the code it seems to be already notifying when it
actually changes.

Test Plan: tests pass, plasma runs fine.

Reviewers: #plasma

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D21481

src/plasma/private/containment_p.cpp

@@ -109,7 +109,6 @@ void ContainmentPrivate::checkStatus(Plasma::Types::ItemStatus appletStatus)
 {
     //qCDebug(LOG_PLASMA) << "================== "<< appletStatus << q->status();
     if (appletStatus == q->status()) {
-        emit q->statusChanged(appletStatus);
         return;
     }