fix: remove unnecessary field for pass objects with Bundle

[Kiolk]

Hi. I investigated the problem with issue #2906 Some gist files not show, because Bundle has limitation on content in 50K. This case happened in bug report. I removed content field from object for resolve this problem. This field do not necessary and do not used in item card.

[KaustubhPatange]

The author must've thought why he needs that field in the Bundle. Anyway is there a cleaner way to do it, the current solution feels more like a hack!