Removing WKWebViewSearchParam

ios/chrome/browser/experimental_flags.mm

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file can be empty. Its purpose is to contain the relatively short lived
 // definitions required for experimental flags.
 
 #include "ios/chrome/browser/experimental_flags.h"
 
 #include <dispatch/dispatch.h>
@@ skipping 166 matching lines @@
 bool IsInWKWebViewExperimentControlGroup() {
   if (!CanCheckWKWebViewExperiment()) {
     return false;
   }
   std::string group_name =
       base::FieldTrialList::FindFullName(kWKWebViewTrialName);
   return base::StartsWith(group_name, "Control",
                           base::CompareCase::INSENSITIVE_ASCII);
 }
 
-std::string GetWKWebViewSearchParams() {
-  if (!CanCheckWKWebViewExperiment()) {
-    return std::string();
-  }
-
-  return variations::GetVariationParamValue(kWKWebViewTrialName, "esrch");
-}
-
 bool IsViewCopyPasswordsEnabled() {
   NSString* viewCopyPasswordFlag = [[NSUserDefaults standardUserDefaults]
       objectForKey:kEnableViewCopyPasswords];
   if ([viewCopyPasswordFlag isEqualToString:@"Enabled"])
     return true;
   return false;
 }
 
 bool IsPasswordGenerationEnabled() {
   // This call activates the field trial, if needed, so it must come before any
@@ skipping 27 matching lines @@
     return false;
   }
 
   // Check if the finch experiment is turned on.
   std::string group_name = base::FieldTrialList::FindFullName("IOSTabSwitcher");
   return base::StartsWith(group_name, "Enabled",
                           base::CompareCase::INSENSITIVE_ASCII);
 }
 
 }  // namespace experimental_flags