Use rls-data 0.18.1

Author: Xanewok

src/Cargo.toml

@@ -57,7 +57,6 @@ cargo = { path = "tools/cargo" }
 # that we're shipping as well (to ensure that the rustfmt in RLS and the
 # `rustfmt` executable are the same exact version).
 rustfmt-nightly = { path = "tools/rustfmt" }
-rls-data = { git = "https://github.com/Xanewok/rls-data", branch = "compilation-options" }
 
 # See comments in `tools/rustc-workspace-hack/README.md` for what's going on
 # here