tidy up lint warnings on windows (#13430)

app/cmd/app/app_darwin.go

@@ -191,13 +191,6 @@ func LaunchNewApp() {
 	C.launchApp(appName)
 }
 
-// Send a request to the main app thread to load a UI page
-func sendUIRequestMessage(path string) {
-	p := C.CString(path)
-	defer C.free(unsafe.Pointer(p))
-	C.uiRequest(p)
-}
-
 func registerLaunchAgent(hasCompletedFirstRun bool) {
 	// Remove any stale Login Item registrations
 	C.unregisterSelfFromLoginItem()

app/cmd/app/app_windows.go

@@ -263,11 +263,6 @@ func createLoginShortcut() error {
 	return nil
 }
 
-// Send a request to the main app thread to load a UI page
-func sendUIRequestMessage(path string) {
-	wintray.SendUIRequestMessage(path)
-}
-
 func LaunchNewApp() {
 }