crypto: inside-secure - remove crc32 support

The crc32 acceleration in the inside-secure driver is accessible only as
an asynchronous hash.  However, there seems to be no corresponding user
of crc32 in the kernel that supports asynchronous hashes.  Therefore,
this code seems to be unused.

The patch that added this code provided no justification for its
inclusion.  All devicetree bindings for this accelerator are for arm64;
arm64 CPUs often have CRC or PMULL instructions, which already
accelerate crc32 very well.  And these actually work with the crc32
users in the kernel, unlike this driver which doesn't.

Remove this unnecessary code.

Cc: Antoine Tenart <atenart@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250531204244.24648-1-ebiggers@kernel.org


Signed-off-by: Eric Biggers <ebiggers@kernel.org>