Undo changes made by commit #3849 for certain files

[xueba0458]

Describe the solution you'd like

The pull request #3849 is pointless; on modern computers, saving such a small amount of storage space is negligible. However, the consequence of this space-saving effort is the inability to use bash, which in turn disables many troubleshooting methods. In Chinese, there's a proverb to describe this situation: "Losing the watermelon while picking up the sesame seeds," meaning you're sacrificing something important for a trivial gain.

Type of feature

Other

Additional context

No response

[SlavikCA]

Agree.

Please bring shell back.

[Promix953]

Yes, it also causes healthcheck to fail and healthz endpoints to look like a joke!

PS：提交那个PR的人就是个SB！