To avoid that missing std::shared_ptr support disables collada support
silently. I guess this caused the prolems with the linux packages.

In 4.3.1 packages it causes crash because there disabled
collada support was not handled very well (UI part of dae/kmz
support was not disabled, so user can insert a file, but the
converter libraries are missing)

In 4.3.2 packages collada support is also disabled, but in this case
the option to insert dae/kmz file is not available either.

Change-Id: Ic74e935ab639c348f1c55dc206d5fffa439d240d