powerpc/configs: Drop no longer needed CONFIG_CRYPTO_HMAC

Since commit 401e4238 ("crypto: rng - Make DRBG the default RNG")
we no longer need to set CONFIG_CRYPTO_HMAC in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/configs/44x/eiger_defconfig

@@ -88,7 +88,6 @@ CONFIG_CRYPTO_ECB=y
 CONFIG_CRYPTO_LRW=y
 CONFIG_CRYPTO_PCBC=y
 CONFIG_CRYPTO_XTS=y
-CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_XCBC=y
 CONFIG_CRYPTO_MD4=y
 CONFIG_CRYPTO_MD5=y

arch/powerpc/configs/44x/redwood_defconfig

@@ -87,7 +87,6 @@ CONFIG_CRYPTO_ECB=y
 CONFIG_CRYPTO_LRW=y
 CONFIG_CRYPTO_PCBC=y
 CONFIG_CRYPTO_XTS=y
-CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_XCBC=y
 CONFIG_CRYPTO_MD4=y
 CONFIG_CRYPTO_MD5=y