[Fixit] Cleanup MessagesForAndroidChromeSurvey flag

Cleanup the HaTS message flag since it has already been launched.
Additionally, remove survey infobar code and update affected tests.

Bug: 1385901, 1400737, 1383593
Change-Id: I6b9e7168c58268c9eb68b65321669b8f19232194
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4098992
Reviewed-by: Wenyu Fu <wenyufu@chromium.org>
Reviewed-by: Evan Stade <estade@chromium.org>
Reviewed-by: Weilun Shi <sweilun@chromium.org>
Reviewed-by: Theresa Sullivan <twellington@chromium.org>
Commit-Queue: Aishwarya Rajesh <aishwaryarj@google.com>
Cr-Commit-Position: refs/heads/main@{#1084626}

chrome/android/BUILD.gn

@@ -4045,7 +4045,6 @@ generate_jni("chrome_jni_headers") {
     "java/src/org/chromium/chrome/browser/infobar/PermissionInfoBar.java",
     "java/src/org/chromium/chrome/browser/infobar/ReaderModeInfoBar.java",
     "java/src/org/chromium/chrome/browser/infobar/SafetyTipInfoBar.java",
-    "java/src/org/chromium/chrome/browser/infobar/SurveyInfoBar.java",
     "java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java",
     "java/src/org/chromium/chrome/browser/init/NativeStartupBridge.java",
     "java/src/org/chromium/chrome/browser/javascript/WebContextFetcher.java",

chrome/android/chrome_java_sources.gni

@@ -692,8 +692,6 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/infobar/ReaderModeInfoBar.java",
   "java/src/org/chromium/chrome/browser/infobar/SafetyTipInfoBar.java",
   "java/src/org/chromium/chrome/browser/infobar/SubPanelListener.java",
-  "java/src/org/chromium/chrome/browser/infobar/SurveyInfoBar.java",
-  "java/src/org/chromium/chrome/browser/infobar/SurveyInfoBarDelegate.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java",
   "java/src/org/chromium/chrome/browser/init/ActivityLifecycleDispatcherImpl.java",
   "java/src/org/chromium/chrome/browser/init/AsyncInitTaskRunner.java",