diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 2922f378aa..c0ec6fb4c2 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1567,10 +1567,6 @@ struct mbedtls_ssl_config {
     const uint16_t *MBEDTLS_PRIVATE(sig_algs);      /*!< allowed signature algorithms       */
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
 
-#if defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_DEPRECATED_REMOVED)
-    const mbedtls_ecp_group_id *MBEDTLS_PRIVATE(curve_list); /*!< allowed curves             */
-#endif
-
     const uint16_t *MBEDTLS_PRIVATE(group_list);     /*!< allowed IANA NamedGroups */
 
 #if defined(MBEDTLS_DHM_C)
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 5bda91a281..4d6ac2b6ec 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2270,25 +2270,11 @@ int mbedtls_ssl_get_handshake_transcript(mbedtls_ssl_context *ssl,
 /*
  * Return supported groups.
  *
- * In future, invocations can be changed to ssl->conf->group_list
- * when mbedtls_ssl_conf_curves() is deleted.
- *
- * ssl->handshake->group_list is either a translation of curve_list to IANA TLS group
- * identifiers when mbedtls_ssl_conf_curves() has been used, or a pointer to
- * ssl->conf->group_list when mbedtls_ssl_conf_groups() has been more recently invoked.
- *
+ * In future, invocations can be changed to ssl->conf->group_list.
  */
 static inline const void *mbedtls_ssl_get_groups(const mbedtls_ssl_context *ssl)
 {
-    #if defined(MBEDTLS_DEPRECATED_REMOVED) || !defined(MBEDTLS_ECP_C)
     return ssl->conf->group_list;
-    #else
-    if ((ssl->handshake != NULL) && (ssl->handshake->group_list != NULL)) {
-        return ssl->handshake->group_list;
-    } else {
-        return ssl->conf->group_list;
-    }
-    #endif
 }
 
 /*
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index ad2edae308..9ea58330be 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1154,48 +1154,6 @@ static int ssl_handshake_init(mbedtls_ssl_context *ssl)
     }
 #endif
 
-/*
- * curve_list is translated to IANA TLS group identifiers here because
- * mbedtls_ssl_conf_curves returns void and so can't return
- * any error codes.
- */
-#if defined(MBEDTLS_ECP_C)
-#if !defined(MBEDTLS_DEPRECATED_REMOVED)
-    /* Heap allocate and translate curve_list from internal to IANA group ids */
-    if (ssl->conf->curve_list != NULL) {
-        size_t length;
-        const mbedtls_ecp_group_id *curve_list = ssl->conf->curve_list;
-
-        for (length = 0;  (curve_list[length] != MBEDTLS_ECP_DP_NONE); length++) {
-        }
-
-        /* Leave room for zero termination */
-        uint16_t *group_list = mbedtls_calloc(length + 1, sizeof(uint16_t));
-        if (group_list == NULL) {
-            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
-        }
-
-        for (size_t i = 0; i < length; i++) {
-            uint16_t tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id(
-                curve_list[i]);
-            if (tls_id == 0) {
-                mbedtls_free(group_list);
-                return MBEDTLS_ERR_SSL_BAD_CONFIG;
-            }
-            group_list[i] = tls_id;
-        }
-
-        group_list[length] = 0;
-
-        ssl->handshake->group_list = group_list;
-        ssl->handshake->group_list_heap_allocated = 1;
-    } else {
-        ssl->handshake->group_list = ssl->conf->group_list;
-        ssl->handshake->group_list_heap_allocated = 0;
-    }
-#endif /* MBEDTLS_DEPRECATED_REMOVED */
-#endif /* MBEDTLS_ECP_C */
-
 #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
@@ -2741,9 +2699,6 @@ void mbedtls_ssl_conf_sig_algs(mbedtls_ssl_config *conf,
 void mbedtls_ssl_conf_groups(mbedtls_ssl_config *conf,
                              const uint16_t *group_list)
 {
-#if defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_DEPRECATED_REMOVED)
-    conf->curve_list = NULL;
-#endif
     conf->group_list = group_list;
 }
 
@@ -5964,9 +5919,6 @@ int mbedtls_ssl_config_defaults(mbedtls_ssl_config *conf,
             conf->sig_algs = ssl_preset_suiteb_sig_algs;
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
 
-#if defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_DEPRECATED_REMOVED)
-            conf->curve_list = NULL;
-#endif
             conf->group_list = ssl_preset_suiteb_groups;
             break;
 
@@ -5990,9 +5942,6 @@ int mbedtls_ssl_config_defaults(mbedtls_ssl_config *conf,
             conf->sig_algs = ssl_preset_default_sig_algs;
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
 
-#if defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_DEPRECATED_REMOVED)
-            conf->curve_list = NULL;
-#endif
             conf->group_list = ssl_preset_default_groups;
 
 #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)