crypto: ccp - remove unused variable qim

Variable qim is assigned but never read, it is redundant and can
be removed.

Cleans up clang warning: Value stored to 'qim' is never read

Fixes: 4b394a23 ("crypto: ccp - Let a v5 CCP provide the same function as v3")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>