check_config.h: revert HKDF requirements

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 33e4d0d..30699c4 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -260,7 +260,7 @@
 #error "MBEDTLS_ECP_NO_FALLBACK defined, but no alternative implementation enabled"
 #endif
 
-#if defined(MBEDTLS_HKDF_C) && !( defined(MBEDTLS_MD_C) || defined(MBEDTLS_PSA_CRYPTO_C) )
+#if defined(MBEDTLS_HKDF_C) && !defined(MBEDTLS_MD_C)
 #error "MBEDTLS_HKDF_C defined, but not all prerequisites"
 #endif