Remove useless code

Change-Id: I3a480e5dc0bc3b4270057148b6b9a405323ca5ec
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/qt4projectmanager/qt-desktop/desktopqtversion.cpp

@@ -81,7 +81,6 @@ QString DesktopQtVersion::warningReason() const
 
 QList<ProjectExplorer::Abi> DesktopQtVersion::detectQtAbis() const
 {
-    ensureMkSpecParsed();
     return qtAbisFromLibrary(qtCorePath(versionInfo(), qtVersionString()));
 }