Eliminate SUPERCOP API from tests

[mkannwischer]

Our tests currently use the SUPERCOP API to call in mldsa-native and have to define a couple of additional SUPERCOP-style symbols:

mldsa-native/test/acvp/acvp_mldsa.c

Lines 15 to 25 in 68490ef

	#define crypto_sign_keypair_internal MLD_API_NAMESPACE(keypair_internal)
	#define crypto_sign_signature_internal MLD_API_NAMESPACE(signature_internal)
	#define crypto_sign_verify_internal MLD_API_NAMESPACE(verify_internal)
	#define crypto_sign_verify_extmu MLD_API_NAMESPACE(verify_extmu)
	#define crypto_sign_signature_pre_hash_internal \
	MLD_API_NAMESPACE(signature_pre_hash_internal)
	#define crypto_sign_verify_pre_hash_internal \
	MLD_API_NAMESPACE(verify_pre_hash_internal)
	#define crypto_sign_signature_pre_hash_shake256 \
	MLD_API_NAMESPACE(signature_pre_hash_shake256)
	#define crypto_sign_verify_pre_hash_shake256 \

We should just switch this to the regular API.