Remove e2e tests

tests/e2e/spectron.js

@@ -1,39 +0,0 @@
-import test from 'ava'
-import {Application} from 'spectron'
-import path from 'path'
-
-test.beforeEach(async t => {
-  const boostnotePath = ((platform) => {
-    switch (platform) {
-      case 'darwin':
-        return path.join('..', '..', 'dist', 'Boostnote-darwin-x64', 'Boostnote.app', 'Contents', 'MacOS', 'Boostnote')
-      case 'linux':
-        return path.join('..', '..', 'dist', 'Boostnote-linux-x64', 'Boostnote')
-    }
-  })(process.platform)
-  t.context.app = new Application({
-    path: boostnotePath
-  })
-
-  await t.context.app.start()
-})
-
-test.afterEach.always(async t => {
-  await t.context.app.stop()
-})
-
-test(async t => {
-  const app = t.context.app
-  await app.client.waitUntilWindowLoaded()
-
-  const win = app.browserWindow
-  t.is(await app.client.getWindowCount(), 1)
-  t.false(await win.isMinimized())
-  t.false(await win.isDevToolsOpened())
-  t.true(await win.isVisible())
-  t.true(await win.isFocused())
-
-  const {width, height} = await win.getBounds()
-  t.true(width > 0)
-  t.true(height > 0)
-})