chrome: remove omnibox_ev_bubble_xxx.png assets

chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.mm

Index: chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.mm b/chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.mm
index 3d52003c25b39d5a03f3c62d99044adff1e71fd0..14b40ac626da8b2c3809e79c530bbaca5b210288 100644
--- a/chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.mm
+++ b/chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.mm
@@ -13,7 +13,6 @@
 #import "chrome/browser/ui/cocoa/location_bar/location_icon_decoration.h"
 #import "chrome/browser/ui/cocoa/themed_window.h"
 #include "chrome/grit/generated_resources.h"
-#include "chrome/grit/theme_resources.h"
 #include "skia/ext/skia_utils_mac.h"
 #import "ui/base/cocoa/nsview_additions.h"
 #include "ui/base/l10n/l10n_util_mac.h"
@@ -301,10 +300,6 @@ NSColor* SecurityStateBubbleDecoration::GetBackgroundBorderColor() {
       SkColorSetA(label_color_, 255.0 * GetAnimationProgress()));
 }
 
-ui::NinePartImageIds SecurityStateBubbleDecoration::GetBubbleImageIds() {
-  return IMAGE_GRID(IDR_OMNIBOX_EV_BUBBLE);
-}
-
 NSColor* SecurityStateBubbleDecoration::GetDarkModeTextColor() {
   return [NSColor whiteColor];
 }