refactor: remove HMR relative code

BREAKING CHANGE: `setConfig` is no longer available.

Author: gregberge

README.md

@@ -342,14 +342,7 @@ window.snapSaveState = () => getState()
 
 ### Hot Reloading
 
-Loadable Components is Hot Reload friendly, it works out of the box with [React Hot Loader](https://github.com/gaearon/react-hot-loader) without adding a single line of code. All components are loaded when a reload occurs, if you want to disable this behaviour, you can set a global config:
-
-```js
-import { setConfig } from 'loadable-components'
-
-// Disable automatic "load" of components
-setConfig({ hotReload: false })
-```
+Loadable Components is Hot Reload friendly, it works out of the box with [React Hot Loader](https://github.com/gaearon/react-hot-loader).
 
 ## API Reference
 

src/config.js

@@ -4,5 +4,4 @@ export { default as loadComponents } from './loadComponents'
 export { default as getState } from './getState'
 export { LOADABLE } from './constants'
 export { default } from './loadable'
-export { setConfig } from './config'
 export const componentTracker = tracker

src/config.test.js

@@ -4,7 +4,6 @@ import hoistNonReactStatics from 'hoist-non-react-statics'
 import { LOADABLE } from './constants'
 import resolveModuleDefault from './utils/resolveModuleDefault'
 import * as componentTracker from './componentTracker'
-import { getConfig } from './config'
 
 const EmptyComponent = () => null
 
@@ -107,10 +106,6 @@ function loadable(
 
   LoadableComponent[LOADABLE] = () => LoadableComponent
 
-  if (module && module.hot && getConfig().hotReload) {
-    LoadableComponent.load()
-  }
-
   if (modules) {
     const id = componentTracker.track(LoadableComponent, modules)
     LoadableComponent.componentId = id