IIRC, libqte is machine / device specific. libqte for a collie would cause problems on a poodle for example.
Until recently, the dependency to a certain device wasn't honored by the build system
(same goes for the kernel modules BTW, that's why the "kernel" feed was pulled) and thus these packages were removed.
3.5.3 will provide machine specific packages (ie a libqte_x.x.x_collie.ipk)
For users, this won't change anything as the dependency will be resolved by your
packagemanager w/o you ever noticing.
Only very few users will ever see this problem since libqte ships in the default ROM.