[FS#477] Cannot build luci-app-wshaper: missing whsaper package

[LEDE Bugs]

The following task has a new comment added:

FS#477 - Cannot build luci-app-wshaper: missing whsaper package
User who did this - Hannu Nyman (hnyman)

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wshaper was removed intentionally by https://github.com/openwrt/packages/pull/3850

But good catch about luci-app-wshaper. I removed also that with
https://github.com/openwrt/luci/commit/5ecd5f5bb05dc235d5fb8d8b4f03cdab468c1aae

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=477#comment1641