Revert 221713 "rAc: Wallet: UMA for wallet response codes."

trunk/src/components/autofill/core/browser/autofill_metrics.cc

Index: trunk/src/components/autofill/core/browser/autofill_metrics.cc
===================================================================
--- trunk/src/components/autofill/core/browser/autofill_metrics.cc	(revision 221717)
+++ trunk/src/components/autofill/core/browser/autofill_metrics.cc	(working copy)
@@ -6,7 +6,6 @@
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
-#include "base/metrics/sparse_histogram.h"
 #include "base/time/time.h"
 #include "components/autofill/core/browser/autofill_type.h"
 #include "components/autofill/core/browser/form_structure.h"
@@ -387,10 +386,6 @@
                             required_action, NUM_WALLET_REQUIRED_ACTIONS);
 }
 
-void AutofillMetrics::LogWalletResponseCode(int response_code) const {
-  UMA_HISTOGRAM_SPARSE_SLOWLY("Wallet.ResponseCode", response_code);
-}
-
 void AutofillMetrics::LogDeveloperEngagementMetric(
     DeveloperEngagementMetric metric) const {
   DCHECK_LT(metric, NUM_DEVELOPER_ENGAGEMENT_METRICS);