Remove llvm-strip pass from Makefile

[qmonnet]

[...] bpftool expects llvm-strip (for no good reason, anymore), so make sure you have that tool available.

[...] it would be nice to remove llvm-strip, bpftool gen object strips out DWARF already, so you shouldn't need extra stripping.

Originally posted by @anakryiko in https://github.com/libbpf/libbpf-bootstrap/issues/286#issuecomment-2339664076

[chentao-kernel]

HI, qmonnet, you mean remove llvm-strip like this?

[qmonnet]

Yes I do :slightly_smiling_face:

[chentao-kernel]

It seems no one fix it in upstrem, i can send a ptach latter, do you think it's okay?

[qmonnet]

Absolutely. I planned to do it but I've been rather busy lately, so I won't do it this month. Go ahead, by all means!

[qmonnet]

https://lore.kernel.org/all/[email protected]/t/#u