Rollup merge of #113010 - klensy:ri-rls-fmt, r=ozkanonur

rust-installer & rls: remove exclusion from rustfmt & tidy

<strike>based on #112884</strike>

`rust-installer` and `rls` no longer submodules, but not removed from exclude list for rustfmt and tidy, preventing running fmt and lints on them.

rustfmt.toml

@@ -16,6 +16,8 @@ ignore = [
     "tests",
 
     # do not format submodules
+    # FIXME: sync submodule list with tidy/bootstrap/etc
+    # tidy/src/walk.rs:filter_dirs
     "library/backtrace",
     "library/portable-simd",
     "library/stdarch",
@@ -31,10 +33,8 @@ ignore = [
     "src/tools/cargo",
     "src/tools/clippy",
     "src/tools/miri",
-    "src/tools/rls",
     "src/tools/rust-analyzer",
     "src/tools/rustfmt",
-    "src/tools/rust-installer",
 
     # these are ignored by a standard cargo fmt run
     "compiler/rustc_codegen_cranelift/y.rs", # running rustfmt breaks this file

src/bootstrap/tool.rs

@@ -289,7 +289,7 @@ bootstrap_tool!(
     Compiletest, "src/tools/compiletest", "compiletest", is_unstable_tool = true, allow_features = "test";
     BuildManifest, "src/tools/build-manifest", "build-manifest";
     RemoteTestClient, "src/tools/remote-test-client", "remote-test-client";
-    RustInstaller, "src/tools/rust-installer", "rust-installer", is_external_tool = true;
+    RustInstaller, "src/tools/rust-installer", "rust-installer";
     RustdocTheme, "src/tools/rustdoc-themes", "rustdoc-themes";
     ExpandYamlAnchors, "src/tools/expand-yaml-anchors", "expand-yaml-anchors";
     LintDocs, "src/tools/lint-docs", "lint-docs";