Anyone know what this interior pipe is?

[ATL_E30]

I'm assuming it is some sort of brace as mine is all rusted out and it doesnt look like anything is going through it. I'd like to get rid of it, but wondering if I can just delete it or if I need to weld another in it's place.

Thanks,
Mike

[vpilarrt]

The fuel tank vent system lines run through it.

[ATL_E30]

The fuel tank vent system lines run through it.

Thanks for the info! Appreciate it!