Remove deprecated `robot` method from a probot instance

index.js

@@ -71,14 +71,6 @@ module.exports = (options = {}) => {
     receive,
     logger,
 
-    // Return the first robot
-    get robot () {
-      const caller = (new Error()).stack.split('\n')[2]
-      console.warn('DEPRECATED: the `robot` property is deprecated and will be removed in 0.10.0')
-      console.warn(caller)
-      return robots[0] || createRobot({app, cache, logger, catchErrors: true})
-    },
-
     start () {
       server.listen(options.port)
       logger.trace('Listening on http://localhost:' + options.port)

test/index.js

@@ -107,24 +107,6 @@ describe('Probot', () => {
     })
   })
 
-  describe('robot', () => {
-    it('will be removed in 0.10', () => {
-      // This test will fail in version 0.10
-      const semver = require('semver')
-      const pkg = require('../package')
-      expect(semver.satisfies(pkg.version, '<0.10')).toBe(true)
-    })
-
-    it('returns the first defined (for now)', () => {
-      const robot = probot.load(() => { })
-      expect(probot.robot).toBe(robot)
-    })
-
-    it('returns a robot if no plugins are loaded', () => {
-      expect(probot.robot).toExist()
-    })
-  })
-
   describe('sentry', () => {
     afterEach(() => {
       // Clean up env variables