Build and test PK without MD

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 5fe9849..7582daa 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -359,7 +359,7 @@
 #endif
 
 #if defined(MBEDTLS_PK_C) && \
-    ( !defined(MBEDTLS_MD_C) || ( !defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_C) ) )
+    !defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_C)
 #error "MBEDTLS_PK_C defined, but not all prerequisites"
 #endif
 
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 458fe8f..6429063 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -1211,15 +1211,12 @@
     scripts/config.py unset MBEDTLS_ECJPAKE_C
     scripts/config.py unset MBEDTLS_HKDF_C
     scripts/config.py unset MBEDTLS_HMAC_DRBG_C
-    scripts/config.py unset MBEDTLS_PK_C
     scripts/config.py unset MBEDTLS_PKCS1_V15
     scripts/config.py unset MBEDTLS_PKCS1_V21
     scripts/config.py unset MBEDTLS_PKCS5_C
     scripts/config.py unset MBEDTLS_PKCS12_C
     # Indirect dependencies
     scripts/config.py unset MBEDTLS_ECDSA_DETERMINISTIC
-    scripts/config.py unset MBEDTLS_PK_PARSE_C
-    scripts/config.py unset MBEDTLS_PK_WRITE_C
     scripts/config.py unset MBEDTLS_RSA_C
     make