Archive rust-installer

This has been moved into rust-lang/rust fully.

Author: Mark-Simulacrum

repos/rust-lang/rust-installer.toml renamed to repos/archive/rust-lang/rust-installer.toml

@@ -4,7 +4,6 @@ description = "The Bourne shell installer used by Rust and Cargo"
 bots = []
 
 [access.teams]
-infra = "write"
 
 [[branch-protections]]
 pattern = "master"