remove deprecated rls source from the repository

Signed-off-by: onur-ozkan <work@onurozkan.dev>

Author: onur-ozkan

Diff for: Cargo.lock

@@ -3462,13 +3462,6 @@ dependencies = [
  "walkdir",
 ]
 
-[[package]]
-name = "rls"
-version = "2.0.0"
-dependencies = [
- "serde_json",
-]
-
 [[package]]
 name = "run_make_support"
 version = "0.2.0"

Diff for: Cargo.toml

@@ -24,7 +24,6 @@ members = [
   "src/tools/remote-test-server",
   "src/tools/rust-installer",
   "src/tools/rustdoc",
-  "src/tools/rls",
   "src/tools/rustfmt",
   "src/tools/miri",
   "src/tools/miri/cargo-miri",