Remove trailing inset of separator in search engine setting

Search engine setting should have the same trailing inset for separators
as other settings.

Bug: 937015
Change-Id: Ie9f75ebcb06c9fe927901490d4cb3ec607eab013
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1928776Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Commit-Queue: Yi Su <mrsuyi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#717607}

ios/chrome/browser/ui/settings/search_engine_table_view_controller.mm

@@ -41,7 +41,6 @@ typedef NS_ENUM(NSInteger, ItemType) {
 };
 
 const CGFloat kTableViewSeparatorLeadingInset = 56;
-const CGFloat kTableViewSeparatorTrailingInset = 16;
 const int kFaviconDesiredSizeInPoint = 32;
 const int kFaviconMinSizeInPoint = 16;
 constexpr base::TimeDelta kMaxVisitAge = base::TimeDelta::FromDays(2);
@@ -100,8 +99,8 @@ const char kUmaSelectDefaultSearchEngine[] =
   [super viewDidLoad];
 
   self.tableView.allowsMultipleSelectionDuringEditing = YES;
-  self.tableView.separatorInset = UIEdgeInsetsMake(
-      0, kTableViewSeparatorLeadingInset, 0, kTableViewSeparatorTrailingInset);
+  self.tableView.separatorInset =
+      UIEdgeInsetsMake(0, kTableViewSeparatorLeadingInset, 0, 0);
 
   [self loadModel];
 }