* [ios] bugfix cancel url uft8-encode

Author: acton393

ios/sdk/WeexSDK/Sources/Handler/WXNavigationDefaultImpl.m

@@ -60,10 +60,7 @@ - (void)pushViewControllerWithParam:(NSDictionary *)param completion:(WXNavigati
         animated = NO;
     }
 
-    NSString *url = param[@"url"] ;
-    url = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
-    
-    WXBaseViewController *vc = [[WXBaseViewController alloc]initWithSourceURL:[NSURL URLWithString:url]];
+    WXBaseViewController *vc = [[WXBaseViewController alloc]initWithSourceURL:[NSURL URLWithString:param[@"url"]]];
     vc.hidesBottomBarWhenPushed = YES;
     [container.navigationController pushViewController:vc animated:animated];
     [self callback:block code:MSG_SUCCESS data:nil];