crypto: x86 - drop redundant dependencies on X86

crypto: x86 - drop redundant dependencies on X86

arch/x86/crypto/Kconfig is sourced only when CONFIG_X86=y, so there is
no need for the symbols defined inside it to depend on X86.

In the case of CRYPTO_TWOFISH_586 and CRYPTO_TWOFISH_X86_64, the
dependency was actually on '(X86 || UML_X86)', which suggests that these
two symbols were intended to be available under user-mode Linux as well.
Yet, again these symbols were defined only when CONFIG_X86=y, so that
was not the case.  Just remove this redundant dependency.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>