Remove android_java_ui as it is not used

chrome/browser/supervised_user/supervised_user_interstitial.cc

Index: chrome/browser/supervised_user/supervised_user_interstitial.cc
diff --git a/chrome/browser/supervised_user/supervised_user_interstitial.cc b/chrome/browser/supervised_user/supervised_user_interstitial.cc
index d0a9f42806fcbe6aa514dbac284e4fc3d285d9c4..a92226853ec499fa0bb13e333d232eb423043928 100644
--- a/chrome/browser/supervised_user/supervised_user_interstitial.cc
+++ b/chrome/browser/supervised_user/supervised_user_interstitial.cc
@@ -18,7 +18,6 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/supervised_user/supervised_user_service.h"
 #include "chrome/browser/supervised_user/supervised_user_service_factory.h"
-#include "chrome/common/features.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/infobars/core/infobar.h"
@@ -39,9 +38,9 @@
 #include "ui/base/webui/jstemplate_builder.h"
 #include "ui/base/webui/web_ui_util.h"
 
-#if BUILDFLAG(ANDROID_JAVA_UI)
+#if defined(OS_ANDROID)
 #include "chrome/browser/supervised_user/child_accounts/child_account_feedback_reporter_android.h"
-#elif !defined(OS_ANDROID)
+#else
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/chrome_pages.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
@@ -269,7 +268,7 @@ void SupervisedUserInterstitial::CommandReceived(const std::string& command) {
             reason_, true, second_custodian.empty()));
     std::string message = l10n_util::GetStringFUTF8(
         IDS_BLOCK_INTERSTITIAL_DEFAULT_FEEDBACK_TEXT, reason);
-#if BUILDFLAG(ANDROID_JAVA_UI)
+#if defined(OS_ANDROID)
     ReportChildAccountFeedback(web_contents_, message, url_);
 #else
     chrome::ShowFeedbackPage(chrome::FindBrowserWithWebContents(web_contents_),