test: drop now-empty remote runner (#35343)

* test: drop the now-empty remote runner from CI

* move fixtures to spec-main

* remove remote runner

* fix stuff

* remove global-paths hack

* move ts-smoke to spec/

* fix test after merge

* rename spec-main to spec

* no need to ignore spec/node_modules twice

* simplify spec-runner a little

* no need to hash pj/yl twice

* undo lint change to verify-mksnapshot.py

* excessive ..

* update electron_woa_testing.yml

* don't search for test-results-remote.xml

it is never produced now

spec/fixtures/crash-cases/setimmediate-renderer-crash/index.js

@@ -0,0 +1,22 @@
+const { app, BrowserWindow } = require('electron');
+const path = require('path');
+
+app.whenReady().then(() => {
+  const win = new BrowserWindow({
+    show: false,
+    webPreferences: {
+      nodeIntegration: true,
+      preload: path.resolve(__dirname, 'preload.js')
+    }
+  });
+
+  win.loadURL('about:blank');
+
+  win.webContents.on('render-process-gone', () => {
+    process.exit(1);
+  });
+
+  win.webContents.on('did-finish-load', () => {
+    setTimeout(() => app.quit());
+  });
+});