remove hook.js from files in package.json

Author: pkanal

experimental/packages/opentelemetry-instrumentation/package.json

@@ -32,7 +32,6 @@
     "build/src/**/*.js",
     "build/src/**/*.js.map",
     "build/src/**/*.d.ts",
-    "hook.js",
     "hook.mjs",
     "doc",
     "LICENSE",