diff --git a/third_party b/third_party
index 5ed809d56e..5f601d94ad 160000
--- a/third_party
+++ b/third_party
@@ -1 +1 @@
-Subproject commit 5ed809d56efa48f9d655b7b5333ccefdc7a1c7d7
+Subproject commit 5f601d94ad223e69aa171a78ae95b464b9bf1054
diff --git a/tools/package.json b/tools/package.json
deleted file mode 100644
index bd619fa56f..0000000000
--- a/tools/package.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "name": "deno",
-  "private": true,
-  "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "2.5.0",
-    "@typescript-eslint/parser": "2.5.0",
-    "eslint": "5.15.1",
-    "eslint-config-prettier": "4.1.0",
-    "magic-string": "0.25.2",
-    "typescript": "3.6.3"
-  }
-}
diff --git a/tools/third_party.py b/tools/third_party.py
index e8ab5043c4..9e14f1366e 100644
--- a/tools/third_party.py
+++ b/tools/third_party.py
@@ -44,17 +44,6 @@ def python_env(env=None, merge_env=None):
     return env
 
 
-# Run Yarn to install JavaScript dependencies.
-def run_yarn():
-    node_modules_path = os.path.join(third_party_path, "node_modules")
-    # Note to keep the root directory clean, we keep package.json is in tools/.
-    run([
-        "yarn", "install", "--no-lockfile",
-        "--modules-folder=" + node_modules_path
-    ],
-        cwd=os.path.join(root_path, "tools"))
-
-
 # Install python packages with pip.
 def run_pip():
     # Install an recent version of pip into a temporary directory. The version