Clean up code

- remove unnecessary comments

ee/app/assets/javascripts/threat_monitoring/components/alerts/alert_status.vue

@@ -87,7 +87,7 @@ export default {
           v-for="(label, field) in $options.statuses"
           :key="field"
           :active="field === status"
-          :active-class="'is-active'"
+          active-class="'is-active'"
           @click="updateAlertStatus(field)"
         >
           {{ label }}

ee/spec/frontend/threat_monitoring/components/alerts/alert_status_spec.js

@@ -39,10 +39,8 @@ describe('AlertStatus', () => {
   });
 
   afterEach(() => {
-    if (wrapper) {
-      wrapper.destroy();
-      wrapper = null;
-    }
+    wrapper.destroy();
+    wrapper = null;
   });
 
   describe('a successful request', () => {
@@ -100,7 +98,6 @@ describe('AlertStatus', () => {
       await selectFirstStatusOption();
       await wrapper.vm.$nextTick();
       await selectFirstStatusOption();
-      // Should emit two errors [0,1]
       expect(wrapper.emitted('alert-error').length > 1).toBe(true);
     });