Replace ObjCPropertyReleaser with ReleaseProperties() project-wide.

ios/chrome/browser/ui/ntp/new_tab_page_bar_item.mm

Index: ios/chrome/browser/ui/ntp/new_tab_page_bar_item.mm
diff --git a/ios/chrome/browser/ui/ntp/new_tab_page_bar_item.mm b/ios/chrome/browser/ui/ntp/new_tab_page_bar_item.mm
index 915497f33e479743945e6ee18258c2780cc13507..55e8d77227e55c237fff02199570e21c1c16f3ef 100644
--- a/ios/chrome/browser/ui/ntp/new_tab_page_bar_item.mm
+++ b/ios/chrome/browser/ui/ntp/new_tab_page_bar_item.mm
@@ -4,19 +4,9 @@
 
 #import "ios/chrome/browser/ui/ntp/new_tab_page_bar_item.h"
 
-#include "base/mac/objc_property_releaser.h"
+#include "base/mac/objc_release_properties.h"
 
-@implementation NewTabPageBarItem {
-  // Title of the button.
-  NSString* title_;
-  // A numeric identifier.
-  NSUInteger identifier_;
-  // Tabbar image.
-  UIImage* image_;
-  // New tab page view.
-  __unsafe_unretained UIView* view_;  // weak
-  base::mac::ObjCPropertyReleaser propertyReleaser_NewTabPageBarItem_;
-}
+@implementation NewTabPageBarItem
 
 @synthesize title = title_;
 @synthesize identifier = identifier_;
@@ -35,12 +25,9 @@
   return item;
 }
 
-- (id)init {
-  self = [super init];
-  if (self) {
-    propertyReleaser_NewTabPageBarItem_.Init(self, [NewTabPageBarItem class]);
-  }
-  return self;
+- (void)dealloc {
+  base::mac::ReleaseProperties(self);
+  [super dealloc];
 }
 
 @end