Initially CONFIG_CRYPTO_AES_586=y was added to the i386_defconfig file in:

  c1b362e3: ("x86: update defconfigs")

The code and Kconfig for CONFIG_CRYPTO_AES_586 was removed in:

  1d2c3279: ("crypto: x86/aes - drop scalar assembler implementations")

Remove the leftover from the i386_defconfig file as well.
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20200723171119.9881-1-sedat.dilek@gmail.com