Remove MBEDTLS_ECDH_GEN_PUBLIC_ALT

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 284b7c6..0c9f5e9 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -186,7 +186,6 @@
 
 #if defined(MBEDTLS_ECP_RESTARTABLE)           && \
     ( defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT) || \
-      defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)     || \
       defined(MBEDTLS_ECDSA_SIGN_ALT)          || \
       defined(MBEDTLS_ECDSA_VERIFY_ALT)        || \
       defined(MBEDTLS_ECDSA_GENKEY_ALT) )
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index dd390ff..3349d4e 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -350,7 +350,6 @@
  */
 //#define MBEDTLS_TIMING_ALT
 
-//#define MBEDTLS_ECDH_GEN_PUBLIC_ALT
 //#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT
 //#define MBEDTLS_ECDSA_VERIFY_ALT
 //#define MBEDTLS_ECDSA_SIGN_ALT
diff --git a/tf-psa-crypto/drivers/builtin/src/ecdh.c b/tf-psa-crypto/drivers/builtin/src/ecdh.c
index b276c6a..1a327a0 100644
--- a/tf-psa-crypto/drivers/builtin/src/ecdh.c
+++ b/tf-psa-crypto/drivers/builtin/src/ecdh.c
@@ -43,7 +43,6 @@
     return 1;
 }
 
-#if !defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)
 /*
  * Generate public key (restartable version)
  *
@@ -84,7 +83,6 @@
 {
     return ecdh_gen_public_restartable(grp, d, Q, f_rng, p_rng, NULL);
 }
-#endif /* !MBEDTLS_ECDH_GEN_PUBLIC_ALT */
 
 #if !defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT)
 /*