Rails how to delete a file without failing on error

I'm using JPEGCAM to allow users to take a profile pic with their web cam. This uploads a temporary file as so:

def ajax_photo_upload    
  File.open(upload_path, 'w:ASCII-8BIT') do |f|
    f.write request.raw_post
  end
  # @user.photo = File.open(upload_path)
  @user.assign_attributes(
    :photo => File.open(upload_path),
    :orig_filename => "#{current_user.full_name}.jpg"
  )
  if @user.save
  respond_to do |format|
  .....
private

  def upload_path # is used in upload and create
    file_name = session[:session_id].to_s + '.jpg'
    File.join(::Rails.root.to_s, 'public', 'temp', file_name)
  end

What's the best way to go about deleting this temporary file safely? Thanks