Revert "Updating superbuild SWIG version to 2.0.10"

This reverts commit d4b7cf231902ff5424ace65c3246b9677b8658cd.

Change-Id: Ifc0bc8c033625fb6007fb011b6c5ee3c4ead9e39
Merge topic 'SIMPLEITK-368_UpdateSWIGForR' into next

723b5ad Revert "Updating superbuild SWIG version to 2.0.10"