Remove unused variables

src/controllers/user/display/index.js

@@ -9,7 +9,6 @@ import autoFocuser from '../../../components/autoFocuser';
 
     export default function (view, params) {
         let settingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -30,10 +29,6 @@ import autoFocuser from '../../../components/autoFocuser';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (settingsInstance) {
                 settingsInstance.destroy();

src/controllers/user/home/index.js

@@ -10,7 +10,6 @@ import '../../../components/listview/listview.scss';
 
     export default function (view, params) {
         let homescreenSettingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -31,10 +30,6 @@ import '../../../components/listview/listview.scss';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (homescreenSettingsInstance) {
                 homescreenSettingsInstance.destroy();

src/controllers/user/playback/index.js

@@ -11,7 +11,6 @@ import '../../../components/listview/listview.scss';
 
     export default function (view, params) {
         let settingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -32,10 +31,6 @@ import '../../../components/listview/listview.scss';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (settingsInstance) {
                 settingsInstance.destroy();

src/controllers/user/profile/index.js

@@ -54,7 +54,7 @@ function onFileReaderError(evt) {
     }
 }
 
-function onFileReaderAbort(evt) {
+function onFileReaderAbort() {
     loading.hide();
     toast(globalize.translate('FileReadCancelled'));
 }
@@ -95,7 +95,7 @@ export default function (view, params) {
             });
         });
     });
-    view.querySelector('#btnAddImage').addEventListener('click', function (evt) {
+    view.querySelector('#btnAddImage').addEventListener('click', function () {
         view.querySelector('#uploadImage').click();
     });
     view.querySelector('#uploadImage').addEventListener('change', function (evt) {

src/controllers/user/subtitles/index.js

@@ -9,7 +9,6 @@ import autoFocuser from '../../../components/autoFocuser';
 
     export default function (view, params) {
         let subtitleSettingsInstance;
-        let hasChanges;
 
         const userId = params.userId || ApiClient.getCurrentUserId();
         const currentSettings = userId === ApiClient.getCurrentUserId() ? userSettings : new UserSettings();
@@ -30,10 +29,6 @@ import autoFocuser from '../../../components/autoFocuser';
             }
         });
 
-        view.addEventListener('change', function () {
-            hasChanges = true;
-        });
-
         view.addEventListener('viewdestroy', function () {
             if (subtitleSettingsInstance) {
                 subtitleSettingsInstance.destroy();