chore: remove dead code (denoland#8296)

.github/workflows/ci.yml

@@ -61,7 +61,7 @@ jobs:
  !startsWith(github.ref, 'refs/tags/std/')
  run: |
  mkdir -p target/release
- tar --exclude=.cargo_home --exclude=".git*" --exclude=target --exclude=third_party/node_modules --exclude=third_party/python_packages --exclude=third_party/prebuilt -czvf target/release/deno_src.tar.gz -C .. deno
+ tar --exclude=.cargo_home --exclude=".git*" --exclude=target --exclude=third_party/prebuilt -czvf target/release/deno_src.tar.gz -C .. deno
 
  - name: Install rust
  uses: hecrj/setup-rust-action@v1

.gitignore

@@ -15,13 +15,6 @@ gclient_config.py_entries
 /node_modules
 /tsconfig.json
 
-# We use something stronger than lockfiles, we have all NPM modules stored in a
-# git. We do not download from NPM during build.
-# https://github.com/denoland/deno_third_party
-yarn.lock
-# yarn creates this in error.
-tools/node_modules/
-
 # compiled wasm files
 std/wasi/testdata/snapshot_preview1/