[ios] Remove unused import

Change-Id: Ic33e18618ad0dcc63c233d97d9c9f87132241f79
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2163410Reviewed-by: Sergio Collazos <sczs@chromium.org>
Commit-Queue: edchin <edchin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#762085}

ios/chrome/browser/ui/badges/badge_view_controller.mm

@@ -9,7 +9,6 @@
 #import "ios/chrome/browser/ui/badges/badge_button_factory.h"
 #import "ios/chrome/browser/ui/badges/badge_constants.h"
 #import "ios/chrome/browser/ui/badges/badge_item.h"
-#import "ios/chrome/browser/ui/elements/extended_touch_target_button.h"
 #import "ios/chrome/browser/ui/util/named_guide.h"
 #import "ios/chrome/common/material_timing.h"
 #import "ios/chrome/common/ui/colors/semantic_color_names.h"