[net/auth] Remove non-effective method.

Removes some no-op code.

Bug: 927182
Change-Id: I295a0e9f3b166a1c204d053af9f86acb3917a5b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1938710Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Asanka Herath <asanka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719720}

net/http/http_auth_handler_ntlm.h

@@ -131,10 +131,6 @@ class NET_EXPORT_PRIVATE HttpAuthHandlerNTLM : public HttpAuthHandler {
   bool AllowsDefaultCredentials() override;
 
  protected:
-  // This function acquires a credentials handle in the SSPI implementation.
-  // It does nothing in the portable implementation.
-  int InitializeBeforeFirstChallenge();
-
   // HttpAuthHandler
   bool Init(HttpAuthChallengeTokenizer* tok, const SSLInfo& ssl_info) override;
   int GenerateAuthTokenImpl(const AuthCredentials* credentials,

net/http/http_auth_handler_ntlm_portable.cc

@@ -89,10 +89,6 @@ bool HttpAuthHandlerNTLM::AllowsDefaultCredentials() {
   return false;
 }
 
-int HttpAuthHandlerNTLM::InitializeBeforeFirstChallenge() {
-  return OK;
-}
-
 int HttpAuthHandlerNTLM::GenerateAuthTokenImpl(
     const AuthCredentials* credentials,
     const HttpRequestInfo* request,
@@ -120,14 +116,6 @@ int HttpAuthHandlerNTLM::GenerateAuthTokenImpl(
   domain_ = domain;
   credentials_.Set(user, credentials->password());
 
-  if (challenge_token_.empty()) {
-    // There is no |challenge_token_| because the client sends the first
-    // message.
-    int rv = InitializeBeforeFirstChallenge();
-    if (rv != OK)
-      return rv;
-  }
-
   std::vector<uint8_t> next_token =
       GetNextToken(base::as_bytes(base::make_span(challenge_token_)));
   if (next_token.empty())