Skipping sending speaker id selection info to disable user verification.

SpeakerIdSelectionInfo is used for selecting account, and deciding
whether to block personal answers.

Bug: b/120997839
Test: Manual
Change-Id: Iaa1eea7067e968e1353f817325e2b95e3a7af356
Reviewed-on: https://chromium-review.googlesource.com/c/1435899
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Commit-Queue: Li Lin <llin@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#625902}(cherry picked from commit 0aea92cfe1273064c42e15b9fd2057c441862104)
Reviewed-on: https://chromium-review.googlesource.com/c/1450306
Cr-Commit-Position: refs/branch-heads/3683@{#185}
Cr-Branched-From: e51029943e0a38dd794b73caaf6373d5496ae783-refs/heads/master@{#625896}
diff --git a/chromeos/services/assistant/utils.cc b/chromeos/services/assistant/utils.cc
index 6a684bf..8422c02 100644
--- a/chromeos/services/assistant/utils.cc
+++ b/chromeos/services/assistant/utils.cc
@@ -72,6 +72,8 @@
   dict.SetKey("disable_hotword", Value(disable_hotword));
   sources.GetList().push_back(std::move(dict));
   audio_input.SetKey("sources", std::move(sources));
+  // Skip sending speaker ID selection info to disable user verification.
+  audio_input.SetKey("should_send_speaker_id_selection_info", Value(false));
   config.SetKey("audio_input", std::move(audio_input));
 
   std::string json;