fscrypt: Remove fs-layer zeroout code

Now that fscrypt's file contents en/decryption is always implemented
using blk-crypto when the filesystem is block-based, the fs-layer
zeroout code in fs/crypto/bio.c is unused code.  Remove it, then fold
fscrypt_zeroout_range_inline_crypt() into fscrypt_zeroout_range().

Then make fscrypt_alloc_bounce_page() and fscrypt_crypt_data_unit()
static, since they're no longer called from any other file.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20260713023708.9245-15-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>

0 files changed, 0 insertions, 0 deletions