chore: remove need for system trust key

config

@@ -10829,14 +10829,14 @@ CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
 CONFIG_MODULE_SIG_KEY_TYPE_RSA=y
 # CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set
 CONFIG_SYSTEM_TRUSTED_KEYRING=y
-CONFIG_SYSTEM_TRUSTED_KEYS="debian/canonical-certs.pem"
+CONFIG_SYSTEM_TRUSTED_KEYS=""
 CONFIG_SYSTEM_EXTRA_CERTIFICATE=y
 CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE=4096
 CONFIG_SECONDARY_TRUSTED_KEYRING=y
 CONFIG_SYSTEM_BLACKLIST_KEYRING=y
 CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
 CONFIG_SYSTEM_REVOCATION_LIST=y
-CONFIG_SYSTEM_REVOCATION_KEYS="debian/canonical-revoked-certs.pem"
+CONFIG_SYSTEM_REVOCATION_KEYS=""
 # end of Certificates for signature checking
 
 CONFIG_BINARY_PRINTF=y