[iOS] Reverting contentInset change in Price Tracking

Using UIButtonConfiguration is crashing Price Tracking feature. This
CL reverts that change for now to avoid crashes while we look for a
long term fix.

Fixed: 1422402, 1422335
Change-Id: I3f46d31f4fe325f34df7c00cfa543f6ea9c275fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4321409
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Auto-Submit: Joemer Ramos <joemerramos@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1115048}

ios/chrome/browser/ui/price_notifications/cells/price_notifications_track_button.mm

@@ -46,24 +46,9 @@ - (void)layoutSubviews {
       price_notifications::CalculateTrackButtonHorizontalPadding(
           self.superview.superview.frame.size.width,
           self.titleLabel.intrinsicContentSize.width);
-
-  // TODO(crbug.com/1418068): Simplify after minimum version required is >=
-  // iOS 15.
-  if (@available(iOS 15, *)) {
-    UIButtonConfiguration* buttonConfiguration =
-        [UIButtonConfiguration plainButtonConfiguration];
-    buttonConfiguration.contentInsets =
-        NSDirectionalEdgeInsetsMake(kTrackButtonTopPadding, horizontalPadding,
-                                    kTrackButtonTopPadding, horizontalPadding);
-    self.configuration = buttonConfiguration;
-  }
-#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_15_0
-  else {
-    self.contentEdgeInsets =
-        UIEdgeInsetsMake(kTrackButtonTopPadding, horizontalPadding,
-                         kTrackButtonTopPadding, horizontalPadding);
-  }
-#endif  // __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_15_0
+  self.contentEdgeInsets =
+      UIEdgeInsetsMake(kTrackButtonTopPadding, horizontalPadding,
+                       kTrackButtonTopPadding, horizontalPadding);
 
   price_notifications::WidthConstraintValues constraintValues =
       price_notifications::CalculateTrackButtonWidthConstraints(