Make eslint happy.

assets/javascripts/initializers/discourse-group-timezones.js.es6

@@ -14,7 +14,7 @@ export default {
         _glued = [];
       }
 
-      function _attachWidget(api, container, options) {
+      function _attachWidget(container, options) {
         const glue = new WidgetGlue(
           "discourse-group-timezones",
           getRegister(api),
@@ -39,7 +39,7 @@ export default {
 
           const members = post.group_timezones[group] || [];
 
-          _attachWidget(api, groupTimezone, {
+          _attachWidget(groupTimezone, {
             id: `${post.id}-${idx}`,
             members,
             group,

assets/javascripts/lib/round-time.js.es6

@@ -79,6 +79,6 @@ if (typeof moment.fn.floor !== "function") {
 
 const STEP = 15;
 
-export default function roundTime(date, negativeOffset = true) {
+export default function roundTime(date) {
   return date.round(STEP, "minutes");
 }

assets/javascripts/widgets/discourse-group-timezones-filter.js.es6

@@ -18,7 +18,7 @@ export default createWidget("discourse-group-timezones-filter", {
     );
   },
 
-  buildAttributes(attrs) {
+  buildAttributes() {
     return {
       type: "text",
       placeholder: I18n.t("group_timezones.search")

assets/javascripts/widgets/discourse-group-timezones-slider.js.es6

@@ -22,7 +22,7 @@ export default createWidget("discourse-group-timezones-slider", {
     );
   },
 
-  buildAttributes(attrs) {
+  buildAttributes() {
     return {
       step: 1,
       value: 0,

assets/javascripts/widgets/discourse-group-timezones.js.es6

@@ -17,7 +17,7 @@ export default createWidget("discourse-group-timezones", {
     };
   },
 
-  defaultState(attrs) {
+  defaultState() {
     return {
       localTimeOffset: 0
     };