Image-rendering: Cleanup of rendering code (#20496)

pkg/services/rendering/interface.go

@@ -27,7 +27,6 @@ type Opts struct {
 
 type RenderResult struct {
 	FilePath string
-	KeepFileAfterRender bool
 }
 
 type renderFunc func(ctx context.Context, options Opts) (*RenderResult, error)

pkg/services/rendering/rendering.go

@@ -97,7 +97,6 @@ func (rs *RenderingService) RenderErrorImage(err error) (*RenderResult, error) {
 
 	return &RenderResult{
 		FilePath: filepath.Join(setting.HomePath, imgUrl),
-		KeepFileAfterRender: true,
 	}, nil
 }
 
@@ -105,7 +104,6 @@ func (rs *RenderingService) Render(ctx context.Context, opts Opts) (*RenderResul
 	if rs.inProgressCount > opts.ConcurrentLimit {
 		return &RenderResult{
 			FilePath: filepath.Join(setting.HomePath, "public/img/rendering_limit.png"),
-			KeepFileAfterRender: true,
 		}, nil
 	}