rsa.c: remove MBEDTLS_PRIVATE

Signed-off-by: Yanray Wang <yanray.wang@arm.com>
diff --git a/library/rsa.c b/library/rsa.c
index 63102d7..54585f2 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -504,7 +504,7 @@
  */
 int mbedtls_rsa_get_padding_mode(const mbedtls_rsa_context *ctx)
 {
-    return ctx->MBEDTLS_PRIVATE(padding);
+    return ctx->padding;
 }
 
 /*
@@ -512,7 +512,7 @@
  */
 int mbedtls_rsa_get_hash_id(const mbedtls_rsa_context *ctx)
 {
-    return ctx->MBEDTLS_PRIVATE(hash_id);
+    return ctx->hash_id;
 }
 
 /*