chore: remove cleaning dependencies from test-runner

It doesn't change much since the e2e projects are packages of the monorepo and most of their dependencies will be stored in node_modules directory at the root level.

e2e/test-runner.js

@@ -2,11 +2,12 @@ const fs = require('fs')
 const path = require('path')
 const { spawn } = require('child_process')
 const chalk = require('chalk')
-const rimraf = require('rimraf')
 
-// Can be run as `yarn test:e2e --cache` to forego reinstalling node_modules, or
-// `yarn test:e2e 3.x`, or `yarn test:e2e 3.x/<projects dir>`, or
-// `yarn test:e2e --cache 3.x/<projects dir>`.
+/**
+ * Can be run as
+ * - `yarn test:e2e 3.x` to run only the 3.x tests
+ * - `yarn test:e2e 3.x/<projects dir>` to run only the test of a specific project
+ */
 const args = process.argv.slice(2)
 
 async function runTests() {
@@ -32,27 +33,12 @@ async function runTests() {
 }
 
 async function runTest(dir) {
-  if (!args.includes('--cache')) {
-    await remove(dir, 'node_modules')
-    await remove(dir, 'yarn.lock')
-    await installDependencies(dir)
-  }
-  logStep(dir, 'Running tests')
+  info(`(${dir}) Running tests`)
   await execute(dir, 'yarn test')
 
   success(`(${dir}) Complete`)
 }
 
-async function remove(dir, target) {
-  logStep(dir, `Removing ${target}`)
-  await new Promise(resolve => rimraf(`${dir}/${target}`, resolve))
-}
-
-async function installDependencies(dir) {
-  logStep(dir, 'Installing node_modules')
-  await execute(dir, 'yarn install --silent')
-}
-
 async function execute(dir, command) {
   const exitCode = await new Promise((resolve, reject) => {
     const [cmd, ...args] = command.split(' ')
@@ -70,10 +56,6 @@ function filterDirectories(directories) {
   return filtered.length ? filtered : directories
 }
 
-function logStep(dir, msg) {
-  return info(`(${dir}) ${msg}`)
-}
-
 function success(msg) {
   console.info(chalk.green(formatLog(msg)))
 }