Revert "crypto: api - Use work queue in crypto_destroy_instance"

This reverts commit c4cb61c5 which is
commit 9ae4577b upstream.

It breaks the Android ABI and if it is needed in the future, can be
brought back in an abi-safe way.

Bug: 161946584
Change-Id: Icc26bcbe08b4d0b48cfae0be695a453531b9db50
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>