Remove dead code
Remove dead code

pkcs15-westcos.c:198:3: warning: Value stored to 'usage' is never read
                usage =
                ^


git-svn-id: 444ed946b9c2220da791e84c3dd156a05f92db99@5180 c6295689-39f2-0310-b995-f0e70906c6a9

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