[U-Boot] [PATCH 2/3] fdt: add fdt_del_node_by_path() API

[Wolfgang Denk]

Dear "Li Yang-R58472",

In message <3A45394FD742FA419B760BB8D398F9EDE667CD at zch01exm26.fsl.freescale.net> you wrote:
>
> It will be used in patches to be submitted, we want to remove the nodes
> of devices which are not enabled depending on the board configuration.

The rule is that we don't add dead code, so this patch should be part
of a patch series that also adds users of this new code.

Best regards,

Wolfgang Denk

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