Trivial cleanup of MapModelIndex

This change removes the unused 'index' map from the code, and simplifies
the implementation of the 'addProxyUri' and 'removeProxyUri' methods.
The changes should not cause any visible effect for users of Sphinx, but
should make the codebase more maintainable.

Change-Id: Ie9a4eb9ea867a76739da2d335b9f98701abf644c
Signed-off-by: Balazs Varnai <balazs_varnai@mentor.com>
Signed-off-by: Zoltan Ujhelyi <zoltan.ujhelyi@incquerylabs.com>
1 file changed