Revert "update: 修复小程序端不能直接在模版内使用$emit的Bug askID:82865"

This reverts commit e3674be5.

packages/vue-cli-plugin-uni/packages/mp-vue/dist/mp.runtime.esm.js

@@ -5765,13 +5765,12 @@ function internalMixin(Vue) {
   var oldEmit = Vue.prototype.$emit;
 
   Vue.prototype.$emit = function(event) {
-    if (this.$scope && event) {
-      this.$scope['triggerEvent'](event, {
-        __args__: toArray(arguments, 1)
-      });
-    } else {
-      return oldEmit.apply(this, arguments)
+    if (this.$scope && event) {
+      this.$scope['triggerEvent'](event, {
+        __args__: toArray(arguments, 1)
+      });
     }
+    return oldEmit.apply(this, arguments)
   };
 
   Vue.prototype.$nextTick = function(fn) {