[FS#817] imagebuilder doesnt delete /usr/lib/opkg anymore

[LEDE Bugs]

The following task has a new comment added:

FS#817 - imagebuilder doesnt delete /usr/lib/opkg anymore
User who did this - Matthias Schiffer (NeoRaider)

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I thought this at first, too, but the ImageBuilder doesn't use rootfs.mk AFAICT.

The code of the ImageBuilder handles CONFIG_CLEAN_IPKG differently: https://git.lede-project.org/?p=source.git;a=blob;f=target/imagebuilder/files/Makefile;h=f0e2bd12819de307bc635801a0d17df4c8becc2d;hb=HEAD#l165 . I think, to the contrary, the ImageBuilder should be adjusted with the same change as https://git.lede-project.org/7e1fc09c4f2cc1656f315abaf6d3ba0eb11aa3fa to retain user account information.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=817#comment2712