Remove lang/rust* from list of ports that need procfs
Remove lang/rust* from list of ports that need procfs

The master branch and DF 4.6.1 sysctl for getting the executable path
name has been fixed and rust has been patched to use the fix.  This was
a DragonFly-only issue.

jrmarino/synth,jrmarino/synth,jrmarino/synth,jrmarino/synth