Remove MBEDTLS_RIPEMD160_ALT

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index a2d57fc..007a22d 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -352,7 +352,6 @@
 
 //#define MBEDTLS_CMAC_ALT
 //#define MBEDTLS_MD5_ALT
-//#define MBEDTLS_RIPEMD160_ALT
 //#define MBEDTLS_SHA256_ALT
 //#define MBEDTLS_SHA512_ALT
 
diff --git a/tests/include/alt-dummy/ripemd160_alt.h b/tests/include/alt-dummy/ripemd160_alt.h
deleted file mode 100644
index 72ae47e..0000000
--- a/tests/include/alt-dummy/ripemd160_alt.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* ripemd160_alt.h with dummy types for MBEDTLS_RIPEMD160_ALT */
-/*
- *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
- */
-
-#ifndef RIPEMD160_ALT_H
-#define RIPEMD160_ALT_H
-
-typedef struct mbedtls_ripemd160_context {
-    int dummy;
-}
-mbedtls_ripemd160_context;
-
-
-#endif /* ripemd160_alt.h */
diff --git a/tf-psa-crypto/drivers/builtin/include/mbedtls/ripemd160.h b/tf-psa-crypto/drivers/builtin/include/mbedtls/ripemd160.h
index 279f92b..570ab2e 100644
--- a/tf-psa-crypto/drivers/builtin/include/mbedtls/ripemd160.h
+++ b/tf-psa-crypto/drivers/builtin/include/mbedtls/ripemd160.h
@@ -20,10 +20,6 @@
 extern "C" {
 #endif
 
-#if !defined(MBEDTLS_RIPEMD160_ALT)
-// Regular implementation
-//
-
 /**
  * \brief          RIPEMD-160 context structure
  */
@@ -34,10 +30,6 @@
 }
 mbedtls_ripemd160_context;
 
-#else  /* MBEDTLS_RIPEMD160_ALT */
-#include "ripemd160_alt.h"
-#endif /* MBEDTLS_RIPEMD160_ALT */
-
 /**
  * \brief          Initialize RIPEMD-160 context
  *
diff --git a/tf-psa-crypto/drivers/builtin/src/ripemd160.c b/tf-psa-crypto/drivers/builtin/src/ripemd160.c
index b4fc3cd..96b5466 100644
--- a/tf-psa-crypto/drivers/builtin/src/ripemd160.c
+++ b/tf-psa-crypto/drivers/builtin/src/ripemd160.c
@@ -23,8 +23,6 @@
 
 #include "mbedtls/platform.h"
 
-#if !defined(MBEDTLS_RIPEMD160_ALT)
-
 void mbedtls_ripemd160_init(mbedtls_ripemd160_context *ctx)
 {
     memset(ctx, 0, sizeof(mbedtls_ripemd160_context));
@@ -365,8 +363,6 @@
     return ret;
 }
 
-#endif /* ! MBEDTLS_RIPEMD160_ALT */
-
 /*
  * output = RIPEMD-160( input buffer )
  */