custom musl build seems malformed

Author: ahl

dist-workspace.toml

@@ -13,6 +13,3 @@ installers = []
 targets = ["aarch64-apple-darwin", "x86_64-apple-darwin", "x86_64-unknown-linux-gnu", "x86_64-unknown-linux-musl", "x86_64-pc-windows-msvc"]
 # Which actions to run on pull requests
 pr-run-mode = "plan"
-
-[dist.github-custom-runners.x86_64-unknown-linux-gnu]
-container = { image = "quay.io/pypa/manylinux_2_28_x86_64", host = "x86_64-unknown-linux-musl" }