[nrf noup] modules: mbedtls: remove Y defaults

Those Kconfig options have been removed upstream, but we are temporarily
keeping them (reverted the change) as we have not yet updated to Mbed
TLS 4.

We now include this file even when NRF_SECURITY is in use and
MBEDTLS_BUILTIN is disabled, so make sure that we don't inflate build
sizes for nothing.

Signed-off-by: Tomi Fontanilles <tomi.fontanilles@nordicsemi.no>

Author: tomi-font

modules/mbedtls/Kconfig.tf-psa-crypto

@@ -216,7 +216,6 @@ if MBEDTLS_SOME_CIPHER_ENABLED
 
 config MBEDTLS_CIPHER_MODE_CBC_ENABLED
 	bool "Cipher Block Chaining mode (CBC) for symmetric ciphers"
-	default y if !NET_L2_OPENTHREAD
 
 config MBEDTLS_CIPHER_MODE_CTR_ENABLED
 	bool "Counter Block Cipher mode (CTR) for symmetric ciphers"
@@ -254,7 +253,6 @@ config MBEDTLS_SHA224
 
 config MBEDTLS_SHA256
 	bool "SHA-256 hash algorithm"
-	default y
 
 config MBEDTLS_SHA256_SMALLER
 	bool "Smaller SHA-256 implementation"