Revert "Add printing of the lockfile after installation"

This reverts commit e8621f0.

Author: eregon

dist/index.js

@@ -99,9 +99,6 @@ export async function setupRuby(options = {}) {
   if (inputs['bundler-cache'] === 'true') {
     await common.time('bundle install', async () =>
       bundler.bundleInstall(gemfile, lockFile, platform, engine, version, bundlerVersion, inputs['cache-version']))
-
-    await core.group(`Print lockfile`, async () =>
-      await exec.exec('cat', [lockFile]))
   }
 
   core.setOutput('ruby-prefix', rubyPrefix)