Remove warnings for deprecated $ref emit pattern

Author: nVitius

src/components/InfiniteLoading.vue

@@ -115,7 +115,7 @@ export default /* #__PURE__ */defineComponent({
       this.scrollParent.addEventListener('scroll', this.scrollHandler, evt3rdArg);
     }, 1);
 
-    eventHub.$on('$InfiniteLoading:loaded', (ev) => {
+    eventHub.$on('$InfiniteLoading:loaded', () => {
       this.isFirstLoad = false;
 
       if (this.direction === 'top') {
@@ -128,13 +128,9 @@ export default /* #__PURE__ */defineComponent({
       if (this.status === STATUS.LOADING) {
         this.$nextTick(this.attemptLoad.bind(null, true));
       }
-
-      if (!ev || ev.target !== this) {
-        warn(WARNINGS.STATE_CHANGER);
-      }
     });
 
-    eventHub.$on('$InfiniteLoading:complete', (ev) => {
+    eventHub.$on('$InfiniteLoading:complete', () => {
       this.status = STATUS.COMPLETE;
 
       // force re-complation computed properties to fix the problem of get slot text delay
@@ -143,13 +139,9 @@ export default /* #__PURE__ */defineComponent({
       });
 
       this.scrollParent.removeEventListener('scroll', this.scrollHandler, evt3rdArg);
-
-      if (!ev || ev.target !== this) {
-        warn(WARNINGS.STATE_CHANGER);
-      }
     });
 
-    eventHub.$on('$InfiniteLoading:reset', (ev) => {
+    eventHub.$on('$InfiniteLoading:reset', () => {
       this.status = STATUS.READY;
       this.isFirstLoad = true;
       scrollBarStorage.remove(this.scrollParent);
@@ -160,10 +152,6 @@ export default /* #__PURE__ */defineComponent({
         throttleer.reset();
         this.scrollHandler();
       }, 1);
-
-      if (!ev || ev.target !== this) {
-        warn(WARNINGS.IDENTIFIER);
-      }
     });
 
     /**

src/config.js

@@ -67,29 +67,7 @@ export const evt3rdArg = (() => {
  */
 
 export const WARNINGS = {
-  STATE_CHANGER: [
-    'emit `loaded` and `complete` event through component instance of `$refs` may cause error, so it will be deprecated soon, please use the `$state` argument instead (`$state` just the special `$event` variable):',
-    '\ntemplate:',
-    '<infinite-loading @infinite="infiniteHandler"></infinite-loading>',
-    `
-script:
-...
-infiniteHandler($state) {
-  ajax('https://www.example.com/api/news')
-    .then((res) => {
-      if (res.data.length) {
-        $state.loaded();
-      } else {
-        $state.complete();
-      }
-    });
-}
-...`,
-    '',
-    'more details: https://github.com/PeachScript/vue-infinite-loading/issues/57#issuecomment-324370549',
-  ].join('\n'),
   INFINITE_EVENT: '`:on-infinite` property will be deprecated soon, please use `@infinite` event instead.',
-  IDENTIFIER: 'the `reset` event will be deprecated soon, please reset this component by change the `identifier` property.',
 };
 
 /**