diff --git a/library/gcm.c b/library/gcm.c
index 6d07f8787f..fca0c61297 100644
--- a/library/gcm.c
+++ b/library/gcm.c
@@ -44,10 +44,6 @@
 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
 #include "mbedtls/aes.h"
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif /* MBEDTLS_PLATFORM_C */
 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
 
 #if !defined(MBEDTLS_GCM_ALT)
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index b0116ddfb4..954abea594 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -52,10 +52,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 #include "mbedtls/aes.h"
 #include "mbedtls/asn1.h"
diff --git a/library/psa_crypto_aead.c b/library/psa_crypto_aead.c
index 714d950a14..76d95bcc69 100644
--- a/library/psa_crypto_aead.c
+++ b/library/psa_crypto_aead.c
@@ -27,10 +27,6 @@
 
 #include <string.h>
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 #include "mbedtls/ccm.h"
 #include "mbedtls/chachapoly.h"
diff --git a/library/psa_crypto_client.c b/library/psa_crypto_client.c
index 629feb7dfa..ab79086346 100644
--- a/library/psa_crypto_client.c
+++ b/library/psa_crypto_client.c
@@ -25,10 +25,6 @@
 
 #include <string.h>
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 void psa_reset_key_attributes( psa_key_attributes_t *attributes )
 {
diff --git a/library/psa_crypto_ecp.c b/library/psa_crypto_ecp.c
index 59c3a0e9af..29f53b96e6 100644
--- a/library/psa_crypto_ecp.c
+++ b/library/psa_crypto_ecp.c
@@ -31,10 +31,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 #include <mbedtls/ecdsa.h>
 #include <mbedtls/ecp.h>
diff --git a/library/psa_crypto_rsa.c b/library/psa_crypto_rsa.c
index 7d4718daf4..f1b9809d8b 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -32,10 +32,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 #include <mbedtls/rsa.h>
 #include <mbedtls/error.h>
diff --git a/library/psa_crypto_se.c b/library/psa_crypto_se.c
index 56678d6a90..87d2634e73 100644
--- a/library/psa_crypto_se.c
+++ b/library/psa_crypto_se.c
@@ -38,10 +38,6 @@
 #endif
 
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#define mbedtls_calloc calloc
-#define mbedtls_free   free
-#endif
 
 
 
diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index a6d83e75bd..920a473c62 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -22,13 +22,6 @@
 #include "mbedtls/build_info.h"
 
 #include "mbedtls/platform.h"
-#if !defined(MBEDTLS_PLATFORM_C)
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_exit       exit
-#define mbedtls_printf     printf
-#define mbedtls_free       free
-#endif
 
 #if !defined(MBEDTLS_HAVE_TIME)
 int main( void )