[NO-TICKET] Remove unused function attributes (#16878)

app/file.go

@@ -1026,7 +1026,7 @@ func (a *App) HandleImages(previewPathList []string, thumbnailPathList []string,
 	wg := new(sync.WaitGroup)
 
 	for i := range fileData {
-		img, width, _ := prepareImage(fileData[i])
+		img, _, _ := prepareImage(fileData[i])
 		if img != nil {
 			wg.Add(2)
 			go func(img image.Image, path string) {
@@ -1034,10 +1034,10 @@ func (a *App) HandleImages(previewPathList []string, thumbnailPathList []string,
 				a.generateThumbnailImage(img, path)
 			}(img, thumbnailPathList[i])
 
-			go func(img image.Image, path string, width int) {
+			go func(img image.Image, path string) {
 				defer wg.Done()
-				a.generatePreviewImage(img, path, width)
-			}(img, previewPathList[i], width)
+				a.generatePreviewImage(img, path)
+			}(img, previewPathList[i])
 		}
 	}
 	wg.Wait()
@@ -1122,7 +1122,7 @@ func (a *App) generateThumbnailImage(img image.Image, thumbnailPath string) {
 	}
 }
 
-func (a *App) generatePreviewImage(img image.Image, previewPath string, width int) {
+func (a *App) generatePreviewImage(img image.Image, previewPath string) {
 	preview := genPreview(img)
 
 	buf := new(bytes.Buffer)