GUACAMOLE-929: Merge update copyright date to 2020.

diff --git a/guacamole/src/main/webapp/app/form/controllers/languageFieldController.js b/guacamole/src/main/webapp/app/form/controllers/languageFieldController.js
index fdab137..b7669ff 100644
--- a/guacamole/src/main/webapp/app/form/controllers/languageFieldController.js
+++ b/guacamole/src/main/webapp/app/form/controllers/languageFieldController.js
@@ -40,9 +40,7 @@
 
     // Retrieve defined languages
     languageService.getLanguages().then(function languagesRetrieved(languages) {
-        $scope.$apply(function updateLanguageOptions() {
-            $scope.languages = languages;
-        });
+        $scope.languages = languages;
     }, requestService.DIE);
 
     // Interpret undefined/null as empty string