[Autofill] Remove GZIP compression since requests are now in proto

components/autofill/core/browser/autofill_metrics.h

Index: components/autofill/core/browser/autofill_metrics.h
diff --git a/components/autofill/core/browser/autofill_metrics.h b/components/autofill/core/browser/autofill_metrics.h
index c94f7302941dd3a3137ca184152a69d7b3b4a023..08a8bf99cf3712ba689e917ea806dccd1dc73a8c 100644
--- a/components/autofill/core/browser/autofill_metrics.h
+++ b/components/autofill/core/browser/autofill_metrics.h
@@ -10,7 +10,6 @@
 
 #include "base/macros.h"
 #include "components/autofill/core/browser/autofill_client.h"
-#include "components/autofill/core/browser/autofill_download_manager.h"
 #include "components/autofill/core/browser/autofill_profile.h"
 #include "components/autofill/core/browser/credit_card.h"
 #include "components/autofill/core/browser/field_types.h"
@@ -651,12 +650,6 @@ class AutofillMetrics {
   // state of the form.
   static void LogAutofillFormSubmittedState(AutofillFormSubmittedState state);
 
-  // Log the compression ratio obtained by compressing with gzip. Logs for the
-  // query or upload request, depending on |type|.
-  static void LogPayloadCompressionRatio(
-      int compression_ratio,
-      AutofillDownloadManager::RequestType type);
-
   // Utility to autofill form events in the relevant histograms depending on
   // the presence of server and/or local data.
   class FormEventLogger {