framework/13-inch/7040-amd: remove fprint workaround

fixes #1256

framework/13-inch/7040-amd/README.md

@@ -27,43 +27,3 @@ As of firmware v03.03, a bug in the EC causes the system to wake if AC is connec
 ```
 
 See [Framework AMD Ryzen 7040 Series lid wakeup behavior feedback](https://community.frame.work/t/tracking-framework-amd-ryzen-7040-series-lid-wakeup-behavior-feedback/39128/45).
-
-## Getting the fingerprint sensor to work
-
-The firmware on the fingerprint sensor needs a downgrade to make it work on Linux.
-The process is documented [here](https://knowledgebase.frame.work/en_us/updating-fingerprint-reader-firmware-on-linux-for-13th-gen-and-amd-ryzen-7040-series-laptops-HJrvxv_za).
-
-However on recent NixOS versions also fwupd can no longer update the firmware.
-Using the following snippet allows to temporarly downgrade fwupd to an old-enough version:
-
-```nix
-{
-  services.fwupd.enable = true;
-  # we need fwupd 1.9.7 to downgrade the fingerprint sensor firmware
-  services.fwupd.package = (import (builtins.fetchTarball {
-    url = "https://github.com/NixOS/nixpkgs/archive/bb2009ca185d97813e75736c2b8d1d8bb81bde05.tar.gz";
-    sha256 = "sha256:003qcrsq5g5lggfrpq31gcvj82lb065xvr7bpfa8ddsw8x4dnysk";
-  }) {
-    inherit (pkgs) system;
-  }).fwupd;
-}
-```
-
-Afterwards the downgraded driver can be downloaded and installed like this:
-
-```
-wget https://github.com/FrameworkComputer/linux-docs/raw/main/goodix-moc-609c-v01000330.cab
-sudo fwupdtool install --allow-reinstall --allow-older goodix-moc-609c-v01000330.cab
-Loading…                 [ -                                     ]/nix/store/1n2l5law9g3b77hcfyp50vrhhssbrj5g-glibc-2.37-8/lib/libc.so.6: version `GLIBC_2.38' not found (required by /nix/store/f55npw04a2s6xmrbx4jw12xq16b3avb8-gvfs-1.52.1/lib/gio/modules/libgvfsdbus.so)
-Failed to load module: /nix/store/f55npw04a2s6xmrbx4jw12xq16b3avb8-gvfs-1.52.1/lib/gio/modules/libgvfsdbus.so
-Loading…                 [                                       ]12:16:46.348 FuHistory            schema version 9 is unknown
-Writing…                 [*************************************  ]12:16:57.055 FuEngine             failed to update-cleanup after failed update: failed to get device before update cleanup: failed to wait for detach replug: device d432baa2162a32c1554ef24bd8281953b9d07c11 did not come back
-
-failed to write: failed to reply: transfer timed out
-```
-
-The error message above is harmless. After a reboot, I was able to enroll my fingerprint like this:
-
-```
-sudo fprintd-enroll $USER
-```