Leftover bits of Jailbreak Me.com 3

While poking around on my JB iphone (4 with 5.01 (redsnow and recent ibooks fix corona 1.0-5) using AppInfo, under the Packages tab, I saw this:

8J2 iPhone 3.1 Jailbreak Me 3.0 ...

it's the "saffron-jailbreak-iphone 3.1 *j2" package.

I'm guess it's leftover from when I jailbroke ios 4.3? with JailbreakMe 3.0
They're support files

As listed in "installed files" (*using App Info)
/.
/boot
/boot/mount_nulls
/boot/union_prelink.dylib
/boot/untether
/boot/white_loader
/private
/private/var
/private/var/null
/private/var/null/Applications
/private/var/null/Library
/private/var/null/private
/private/var/null/private/etc
/private/var/null/System
/private/var/null/usr

So ... can I delete the deletable this stuff? It's not hooked into the newer ios or jb in any way right?

I think it was a patch comex issued for JailbreakMe 3.0 because of some issues like Camera Connection Kit

I didn't do a clean restore ... obviously.
But everything else works just fine.

thanks.