6e2801c44e
Remove the x86_64-rumprun-netbsd target Herein we remove the target from the compiler and the code from libstd intended to support the now-defunct rumprun project. Closes #81514
librustc_target contains some very low-level details that are
specific to different compilation targets and so forth.
For more information about how rustc works, see the rustc dev guide.