NTLM: disable if DES support missing from OpenSSL or mbedTLS

Make autotools and cmake detect DES support in OpenSSL and mbedTLS.
Forward feature macros to C and omit NTLM from the feature preview list.
Use the feature macros in source. This ensure that `-V` output matches
the preview.

OpenSSL doesn't support DES when built with `no-des` or `no-deprecated`.
mbedTLS 4.x no longer supports it, and it's possible to disable it in
<4 with `scripts/config.py unset MBEDTLS_DES_C`.

Before this patch this worked for
mbedTLS 4 only, and with a regression for pending PR #16973.

Also:

- drop NTLM feature check from `curl_setup.h` in favour of autotools/
  cmake feature macros. This makes `curl_setup.h` no longer need
  to include an mbedTLS header, which in turn makes tests/server build
  without depending on mbedTLS.
  Fixing, in #16973:
  ```
  In file included from tests/server/first.h:40,
                   from bld/tests/server/servers.c:3:
  lib/curl_setup.h:741:10: fatal error: mbedtls/version.h: No such file or directory
    741 | #include <mbedtls/version.h>
        |          ^~~~~~~~~~~~~~~~~~~
  ```
  Ref: https://github.com/curl/curl/actions/runs/18689537893/job/53291322012?pr=16973
  Ref: #19181 (initial fix idea)
  Follow-up to 3a305831d1 #19077

- move back mbedTLS header include and version check from
  `curl_setup.h` to each source which consumes mbedTLS.

- GHA/http3-linux: drop workaround that disabled NTLM for
  `no-deprecated` OpenSSL builds.
  Follow-up to 006977859d #12384

- curl_ntlm_core: drop pointless macro `CURL_NTLM_NOT_SUPPORTED`.
  Follow-up to 006977859d #12384

Closes #19206

lib/curl_setup.h

@@ -737,13 +737,6 @@
 #  endif
 #endif
 
-#ifdef USE_MBEDTLS
-#include <mbedtls/version.h>
-#if MBEDTLS_VERSION_NUMBER < 0x03020000
-  #error "mbedTLS 3.2.0 or later required"
-#endif
-#endif
-
 #if defined(USE_WOLFSSL) && defined(USE_GNUTLS)
 /* Avoid defining unprefixed wolfSSL SHA macros colliding with nettle ones */
 #define NO_OLD_WC_NAMES
@@ -763,9 +756,9 @@
 
 /* Single point where USE_NTLM definition might be defined */
 #ifndef CURL_DISABLE_NTLM
-#  if defined(USE_OPENSSL) ||                                           \
+#  if (defined(USE_OPENSSL) && defined(HAVE_DES_ECB_ENCRYPT)) ||        \
   defined(USE_GNUTLS) ||                                                \
-  (defined(USE_MBEDTLS) && MBEDTLS_VERSION_NUMBER < 0x04000000) ||      \
+  (defined(USE_MBEDTLS) && defined(HAVE_MBEDTLS_DES_CRYPT_ECB)) ||      \
   defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO) ||              \
   (defined(USE_WOLFSSL) && defined(HAVE_WOLFSSL_DES_ECB_ENCRYPT))
 #    define USE_CURL_NTLM_CORE