Removes all traces of webots.
Removes old tool.
Removes traces of support for different robot types.
Makes CCACHE advanced because it should be default.
Removes debugging options for images because they weren't doing anything and removes old image acquisition stuff.
Marks I_AM_A_ROBOT as advanced because it comes from naoqi and we don't do anything with it.
Removes more unused options and files.
Removes all shared or fake python options. Not used.
Removes MAN_IS_REMOTE, not used at all.