[Autofill] Fixes bug where toggling Google Payments switch was crashing cr.

ios/chrome/browser/ui/settings/autofill_collection_view_controller.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.
 
 #import "ios/chrome/browser/ui/settings/autofill_collection_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "components/autofill/core/browser/personal_data_manager.h"
 #include "components/autofill/core/common/autofill_pref_names.h"
@@ skipping 285 matching lines @@
     }
   }
                                 completion:nil];
 }
 
 - (void)walletSwitchChanged:(UISwitch*)switchView {
   [self setSwitchItemOn:[switchView isOn] itemType:ItemTypeWalletSwitch];
   _userInteractionInProgress = YES;
   [self setWalletEnabled:[switchView isOn]];
   _userInteractionInProgress = NO;
-  if ([switchView isOn]) {
-    [self insertCardSection];
-  } else {
-    [self removeCardSection];
-  }
 }
 
 #pragma mark - Switch Helpers
 
 // Sets switchItem's state to |on|. It is important that there is only one item
 // of |switchItemType| in SectionIdentifierSwitches.
 - (void)setSwitchItemOn:(BOOL)on itemType:(ItemType)switchItemType {
   NSIndexPath* switchPath =
       [self.collectionViewModel indexPathForItemType:switchItemType
                                    sectionIdentifier:SectionIdentifierSwitches];
@@ skipping 61 matching lines @@
                      sectionForSectionIdentifier:SectionIdentifierProfiles]];
   }
   if ([self.collectionViewModel
           hasSectionForSectionIdentifier:SectionIdentifierCards]) {
     [sections addIndex:[self.collectionViewModel
                            sectionForSectionIdentifier:SectionIdentifierCards]];
   }
   return sections;
 }
 
-- (void)insertCardSection {
-  [self populateCardSection];
-  if ([self.collectionViewModel
-          hasSectionForSectionIdentifier:SectionIdentifierCards]) {
-    NSInteger section = [self.collectionViewModel
-        sectionForSectionIdentifier:SectionIdentifierCards];
-    [self.collectionView insertSections:[NSIndexSet indexSetWithIndex:section]];
-  }
-}
-
-- (void)removeCardSection {
-  if (![self.collectionViewModel
-          hasSectionForSectionIdentifier:SectionIdentifierCards]) {
-    return;
-  }
-  NSInteger section = [self.collectionViewModel
-      sectionForSectionIdentifier:SectionIdentifierCards];
-  [self.collectionViewModel removeSectionWithIdentifier:SectionIdentifierCards];
-  [self.collectionView deleteSections:[NSIndexSet indexSetWithIndex:section]];
-}
-
 #pragma mark - MDCCollectionViewStylingDelegate
 
 - (CGFloat)collectionView:(UICollectionView*)collectionView
     cellHeightAtIndexPath:(NSIndexPath*)indexPath {
   CollectionViewItem* item =
       [self.collectionViewModel itemAtIndexPath:indexPath];
   if (item.type == ItemTypeAddress || item.type == ItemTypeCard ||
       item.type == ItemTypeWalletSwitch) {
     return [MDCCollectionViewCell
         cr_preferredHeightForWidth:CGRectGetWidth(collectionView.bounds)
@@ skipping 180 matching lines @@
   return _browserState->GetPrefs()->GetBoolean(
       autofill::prefs::kAutofillWalletImportEnabled);
 }
 
 - (void)setWalletEnabled:(BOOL)isEnabled {
   _browserState->GetPrefs()->SetBoolean(
       autofill::prefs::kAutofillWalletImportEnabled, isEnabled);
 }
 
 @end