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/chromium/other-window.js

@@ -0,0 +1,21 @@
+const { app, BrowserWindow } = require('electron');
+
+const ints = (...args) => args.map(a => parseInt(a, 10));
+
+const [x, y, width, height] = ints(...process.argv.slice(2));
+
+let w;
+
+app.whenReady().then(() => {
+  w = new BrowserWindow({
+    x,
+    y,
+    width,
+    height
+  });
+  console.log('__ready__');
+});
+
+process.on('SIGTERM', () => {
+  process.exit(0);
+});