textproc/choose: update to 1.3.6

While here, remove patch for PowerPC architecture since it has been
incorporated into upstream libc crate.

Changelog:

• https://github.com/theryangeary/choose/releases/tag/v1.3.5
• https://github.com/theryangeary/choose/releases/tag/v1.3.6

Reported by: portscout