* Added comments to SSPI NTLM message generation * Added comments to native DIGEST-MD5 code * Removed redundant identity pointer
When CURL_DISABLE_CRYPTO_AUTH is defined the DIGEST-MD5 code should not be included, regardless of whether USE__WINDOWS_SSPI is defined or not. This is indicated by the definition of USE_HTTP_NEGOTIATE and USE_NTLM in curl_setup.h.