Remove comments from the SSPI teardown guards

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: dragos-dinulescu

lib/vauth/digest_sspi.c

@@ -642,8 +642,7 @@ void Curl_auth_digest_cleanup(struct digestdata *digest)
   /* Reset any variables */
   digest->input_token_len = 0;
 
-  /* Delete security context; Curl_pSecFn is NULL after
-     curl_global_cleanup(), the OS then reclaims handles at process exit */
+  /* Delete security context */
   if(digest->http_context) {
     if(Curl_pSecFn)
       Curl_pSecFn->DeleteSecurityContext(digest->http_context);

lib/vauth/krb5_sspi.c

@@ -425,8 +425,7 @@ CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data,
  */
 void Curl_auth_cleanup_gssapi(struct kerberos5data *krb5)
 {
-  /* Free our security context; Curl_pSecFn is NULL after
-     curl_global_cleanup(), the OS then reclaims handles at process exit */
+  /* Free our security context */
   if(krb5->context) {
     if(Curl_pSecFn)
       Curl_pSecFn->DeleteSecurityContext(krb5->context);

lib/vauth/ntlm_sspi.c

@@ -322,8 +322,7 @@ CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data,
  */
 void Curl_auth_cleanup_ntlm(struct ntlmdata *ntlm)
 {
-  /* Free our security context; Curl_pSecFn is NULL after
-     curl_global_cleanup(), the OS then reclaims handles at process exit */
+  /* Free our security context */
   if(ntlm->context) {
     if(Curl_pSecFn)
       Curl_pSecFn->DeleteSecurityContext(ntlm->context);

lib/vauth/spnego_sspi.c

@@ -310,8 +310,7 @@ CURLcode Curl_auth_create_spnego_message(struct negotiatedata *nego,
  */
 void Curl_auth_cleanup_spnego(struct negotiatedata *nego)
 {
-  /* Free our security context; Curl_pSecFn is NULL after
-     curl_global_cleanup(), the OS then reclaims handles at process exit */
+  /* Free our security context */
   if(nego->context) {
     if(Curl_pSecFn)
       Curl_pSecFn->DeleteSecurityContext(nego->context);