Remove unnecessary pex_binary targets (#16025)
Remove unnecessary pex_binary targets (#16025)

Namely https://github.com/pantsbuild/pants/pull/15849 and https://github.com/pantsbuild/pants/pull/15962

[ci skip-rust]
benjyw/pants,pantsbuild/pants,benjyw/pants,pantsbuild/pants,pantsbuild/pants,benjyw/pants,pantsbuild/pants,benjyw/pants,pantsbuild/pants,benjyw/pants,benjyw/pants,pantsbuild/pants,pantsbuild/pants,benjyw/pants