Remove redundant helper macros in check_config.h

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index b211356..40936cd 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -281,23 +281,8 @@
 #error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites"
 #endif
 
-/* Helpers for hash dependencies, will be undefined at the end of the file */
-/* Do SHA-256, 384, 512 to cover Entropy and TLS. */
-#if defined(MBEDTLS_SHA256_C) || \
-    (defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_256))
-#define MBEDTLS_MD_HAVE_SHA256
-#endif
-#if defined(MBEDTLS_SHA384_C) || \
-    (defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_384))
-#define MBEDTLS_MD_HAVE_SHA384
-#endif
-#if defined(MBEDTLS_SHA512_C) || \
-    (defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_512))
-#define MBEDTLS_MD_HAVE_SHA512
-#endif
-
 #if defined(MBEDTLS_ENTROPY_C) && \
-    !(defined(MBEDTLS_MD_HAVE_SHA512) || defined(MBEDTLS_MD_HAVE_SHA256))
+    !(defined(MBEDTLS_MD_CAN_SHA512) || defined(MBEDTLS_MD_CAN_SHA256))
 #error "MBEDTLS_ENTROPY_C defined, but not all prerequisites"
 #endif
 #if defined(MBEDTLS_ENTROPY_C) && \
@@ -305,12 +290,12 @@
 #error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
 #endif
 #if defined(MBEDTLS_ENTROPY_C) &&                                            \
-    (defined(MBEDTLS_ENTROPY_FORCE_SHA256) || !defined(MBEDTLS_MD_HAVE_SHA512)) \
+    (defined(MBEDTLS_ENTROPY_FORCE_SHA256) || !defined(MBEDTLS_MD_CAN_SHA512)) \
     && defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 32)
 #error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
 #endif
 #if defined(MBEDTLS_ENTROPY_C) && \
-    defined(MBEDTLS_ENTROPY_FORCE_SHA256) && !defined(MBEDTLS_MD_HAVE_SHA256)
+    defined(MBEDTLS_ENTROPY_FORCE_SHA256) && !defined(MBEDTLS_MD_CAN_SHA256)
 #error "MBEDTLS_ENTROPY_FORCE_SHA256 defined, but not all prerequisites"
 #endif
 
@@ -471,7 +456,7 @@
 
 /* Use of EC J-PAKE in TLS requires SHA-256. */
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) &&                    \
-    !defined(MBEDTLS_MD_HAVE_SHA256)
+    !defined(MBEDTLS_MD_CAN_SHA256)
 #error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites"
 #endif
 
@@ -975,7 +960,7 @@
 #endif
 #else /* MBEDTLS_USE_PSA_CRYPTO */
 #if !defined(MBEDTLS_MD_C) || \
-    !(defined(MBEDTLS_MD_HAVE_SHA256) || defined(MBEDTLS_MD_HAVE_SHA384))
+    !(defined(MBEDTLS_MD_CAN_SHA256) || defined(MBEDTLS_MD_CAN_SHA384))
 #error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites"
 #endif
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
@@ -1220,9 +1205,6 @@
 
 /* Undefine helper symbols */
 #undef MBEDTLS_PK_HAVE_JPAKE
-#undef MBEDTLS_MD_HAVE_SHA256
-#undef MBEDTLS_MD_HAVE_SHA384
-#undef MBEDTLS_MD_HAVE_SHA512
 #undef MBEDTLS_PK_HAVE_CURVE_SECP256R1
 
 /*