Runtime 25.08: Remove shared-modules/libusb

[yakushabb]

libusb is part of the runtime 25.08. Please don't forget to remove it when the app is updated to the related runtime.

flatpak run --devel --command=sh org.freedesktop.Platform//25.08

[📦 org.freedesktop.Platform ~]$ grep -A 5 libusb /usr/manifest.json 
      "name": "components/libusb.bst",
      "x-cpe": {
        "product": "libusb",
        "version": "1.0.29"
      },
      "sources": [
        {
          "type": "git",
          "url": "https://github.com/libusb/libusb.git",
          "commit": "v1.0.29-0-g15a7ebb4d426c5ce196684347d2b7cafad862626"
        }
      ]
    },