Remove rust-tiny-dfr package

Upstream fedora packages rust-tiny-dfr with the required changes to run
on t2 macs.

.github/workflows/build.yml

@@ -35,7 +35,6 @@ jobs:
           files: |
             kernel/*
             t2linux-repos/*
-            rust-tiny-dfr/*
             t2linux-audio/*
             t2linux-config/*
             rust-arraydeque/*

.github/workflows/copr-webhooks.yml

@@ -7,7 +7,6 @@ on:
       - "kernel/*"
       - "t2linux-config/*"
       - "t2linux-audio/*"
-      - "rust-tiny-dfr/*"
       - "t2linux-repos/*"
       - "rust-arraydeque/*"
       - "rust-nonempty/*"