crypto: inside-secure - Remove redundant DES ECB & CBC keysize check

This patch removes a DES key size check that is redundant as it is already
performed by the crypto API itself due to min_keysize = max_keysize.

Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Acked-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>