i#1721: disable samples_proj for UNIX non-suite
i#1721: disable samples_proj for UNIX non-suite

There is no simple solution to get samples_proj running on 32-bit Linux so
we just disable unless in the full suite (or on Windows).

Fixes #1721

Review-URL: https://codereview.appspot.com/253920043

bl4ckic3/dynamorio,AmesianX/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,daksunt/dynamorio,daksunt/dynamorio,code4bones/dynamorio,bl4ckic3/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio,bl4ckic3/dynamorio,daksunt/dynamorio,daksunt/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,daksunt/dynamorio