[ELF] Remove ignored options that likely nobody uses

GNU ld doesn't support `--no-pic-executable`.

`-p` has been removed from likely the only use case (Linux kernel) for over 2.5 years: https://git.kernel.org/linus/091bb549f7722723b284f63ac665e2aedcf9dec9

`--no-add-needed` was the pre-binutils-2.23 spelling for `--no-copy-dt-needed-entries`.
The legacy alias is irrelevant in 2021.