Remove old-style resample example in documentation (#2543)
Remove old-style resample example in documentation (#2543)


pydata/xarray,markelg/xray,jhamman/xarray,jhamman/xarray,jhamman/xray,shoyer/xarray,shoyer/xarray,pydata/xarray,shoyer/xray,xray/xray,jhamman/xarray,markelg/xray,pydata/xarray,chunweiyuan/xarray,markelg/xray