qt5: simplify the "all components" logic

DBus and WebKit are not needed anywhere.

Change-Id: Id665f30e2028491597f396037e61a97e25a7005f
fixup! qt5: simplify the "all components" logic

Change-Id: Ida2024c4ae625d3cf0ad96b79a752772fb910e65
Merge topic 'qt5-find-components' into next

5fc7818d fixup! qt5: simplify the "all components" logic
Merge topic 'qt5-find-components' into next

c5750db1 qt5: simplify the "all components" logic