Remove android_java_ui as it is not used

chrome/browser/ui/webui/net_export_ui.cc

Index: chrome/browser/ui/webui/net_export_ui.cc
diff --git a/chrome/browser/ui/webui/net_export_ui.cc b/chrome/browser/ui/webui/net_export_ui.cc
index d95a6e0fab7e8df294fe3e3db4a861ac079b7310..26f2526ab312c16d0a6180513f1751a06cbda6ac 100644
--- a/chrome/browser/ui/webui/net_export_ui.cc
+++ b/chrome/browser/ui/webui/net_export_ui.cc
@@ -33,7 +33,7 @@
 #include "content/public/browser/web_ui_message_handler.h"
 #include "ui/shell_dialogs/select_file_dialog.h"
 
-#if BUILDFLAG(ANDROID_JAVA_UI)
+#if defined(OS_ANDROID)
 #include "chrome/browser/android/intent_helper.h"
 #endif
 
@@ -290,7 +290,7 @@ void NetExportMessageHandler::SendEmail(const base::FilePath& file_to_send) {
     return;
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
-#if BUILDFLAG(ANDROID_JAVA_UI)
+#if defined(OS_ANDROID)
   std::string email;
   std::string subject = "net_internals_log";
   std::string title = "Issue number: ";