Remove stray MBEDTLS_PKCS1_V15 and MBEDTLS_PKCS1_V21

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
diff --git a/tests/scripts/components-configuration-crypto.sh b/tests/scripts/components-configuration-crypto.sh
index c103a64..fcca5ff 100644
--- a/tests/scripts/components-configuration-crypto.sh
+++ b/tests/scripts/components-configuration-crypto.sh
@@ -1469,8 +1469,6 @@
     scripts/config.py crypto
 
     # Remove RSA support and its dependencies
-    scripts/config.py unset MBEDTLS_PKCS1_V15
-    scripts/config.py unset MBEDTLS_PKCS1_V21
     scripts/config.py unset MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
     scripts/config.py unset MBEDTLS_X509_RSASSA_PSS_SUPPORT