relicense shootout-meteor.rs

part of #14248, fix #14420

Removed @richo's contribution (outdated comment)

Quoting @brson: let's move forward with this one. The only
statement I'm missing is @richo's and it sounds like his was a
minor patch.
auto merge of #14669 : TeXitoi/rust/relicense-shootout-meteor, r=brson

part of #14248, fix #14420

Removed @richo's contribution (outdated comment)

Quoting @brson: let's move forward with this one. The only
statement I'm missing is @richo's and it sounds like his was a
minor patch.