ssl: remove useless guard

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 0e3d3af..14a3c7e 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -751,16 +751,9 @@
     mbedtls_dhm_context dhm_ctx;                /*!<  DHM key exchange        */
 #endif
 
-/* Adding guard for MBEDTLS_ECDSA_C to ensure no compile errors due
- * to guards in client and server code. There is a gap in functionality that
- * access to ecdh_ctx structure is needed for MBEDTLS_ECDSA_C which does not
- * seem correct.
- */
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_PK_CAN_ECDSA_SOME)
-#if !defined(MBEDTLS_USE_PSA_CRYPTO)
+#if defined(MBEDTLS_ECDH_C) && !defined(MBEDTLS_USE_PSA_CRYPTO)
     mbedtls_ecdh_context ecdh_ctx;              /*!<  ECDH key exchange       */
-#endif /* !MBEDTLS_USE_PSA_CRYPTO */
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */
+#endif /* MBEDTLS_ECDH_C && !MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(PSA_WANT_ALG_ECDH) && \
     (defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3))
diff --git a/library/ssl_tls12_client.c b/library/ssl_tls12_client.c
index 890e9a9..a6551c6 100644
--- a/library/ssl_tls12_client.c
+++ b/library/ssl_tls12_client.c
@@ -831,11 +831,9 @@
     while (list_size > 0) {
         if (p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
             p[0] == MBEDTLS_ECP_PF_COMPRESSED) {
-#if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
-            (defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C))
+#if !defined(MBEDTLS_USE_PSA_CRYPTO) && (defined(MBEDTLS_ECDH_C))
             ssl->handshake->ecdh_ctx.point_format = p[0];
-#endif /* !MBEDTLS_USE_PSA_CRYPTO &&
-          ( MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ) */
+#endif /* !MBEDTLS_USE_PSA_CRYPTO && MBEDTLS_ECDH_C */
 #if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
             defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
             mbedtls_ecjpake_set_point_format(&ssl->handshake->ecjpake_ctx,
diff --git a/library/ssl_tls12_server.c b/library/ssl_tls12_server.c
index 0fc4a5c..656c40d 100644
--- a/library/ssl_tls12_server.c
+++ b/library/ssl_tls12_server.c
@@ -266,11 +266,9 @@
     while (list_size > 0) {
         if (p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
             p[0] == MBEDTLS_ECP_PF_COMPRESSED) {
-#if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
-            (defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C))
+#if !defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ECDH_C)
             ssl->handshake->ecdh_ctx.point_format = p[0];
-#endif /* !MBEDTLS_USE_PSA_CRYPTO &&
-          ( MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ) */
+#endif /* !MBEDTLS_USE_PSA_CRYPTO && MBEDTLS_ECDH_C */
 #if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
             defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
             mbedtls_ecjpake_set_point_format(&ssl->handshake->ecjpake_ctx,