js: Remove unused catch bindings

Optional catch bindings have been supported for quite a while now,
so we can treat unused error bindings in catch statements like any
other unused variable.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3684>

js/ui/remoteSearch.js

@@ -77,7 +77,7 @@ export function loadRemoteSearchProviders(searchSettings) {
 
         try {
             keyfile.load_from_file(path, 0);
-        } catch (e) {
+        } catch {
             return;
         }
 
@@ -99,7 +99,7 @@ export function loadRemoteSearchProviders(searchSettings) {
                 appInfo = Gio.DesktopAppInfo.new(desktopId);
                 if (!appInfo.should_show())
                     return;
-            } catch (e) {
+            } catch {
                 log(`Ignoring search provider ${path}: missing DesktopId`);
                 return;
             }
@@ -107,14 +107,14 @@ export function loadRemoteSearchProviders(searchSettings) {
             let autoStart = true;
             try {
                 autoStart = keyfile.get_boolean(group, 'AutoStart');
-            } catch (e) {
+            } catch {
                 // ignore error
             }
 
             let version = '1';
             try {
                 version = keyfile.get_string(group, 'Version');
-            } catch (e) {
+            } catch {
                 // ignore error
             }
 
@@ -126,7 +126,7 @@ export function loadRemoteSearchProviders(searchSettings) {
             remoteProvider.defaultEnabled = true;
             try {
                 remoteProvider.defaultEnabled = !keyfile.get_boolean(group, 'DefaultDisabled');
-            } catch (e) {
+            } catch {
                 // ignore error
             }