Remove dubious QMAKE_TARGET_PRODUCT, *_DESCRIPTION

This is a library, so the defaults should be fine.

Change-Id: I03a663ce62a8f2604ed01454cb5824a4d341c080
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>

src/designer/src/components/lib/lib.pro

@@ -11,10 +11,6 @@ DEFINES += QDESIGNER_COMPONENTS_LIBRARY
 
 static:DEFINES += QT_DESIGNER_STATIC
 
-# Override qt_targets
-QMAKE_TARGET_PRODUCT = Designer
-QMAKE_TARGET_DESCRIPTION = Graphical user interface designer.
-
 SOURCES += qdesigner_components.cpp
 
 INCLUDEPATH += . .. \