CI: Remove non-working FreeBSD test.

It takes over an hour to run, because there's no FreeBSD wheel for the cryptography Python
package, and it builds it, in Rust, from scratch.

Then it fails due to some obscure cffi error.

This is the kind of death which happens when an OS just isn't popular enough to get
broad support: even those who want to be supportive find that the infrastructure cost
is too great.

```
Wed, 01 Oct 2025 06:08:27 GMT   # Just run a "quick" test without memory checking
Wed, 01 Oct 2025 06:08:27 GMT   uv run gmake
Wed, 01 Oct 2025 06:08:28 GMT   /usr/bin/bash /home/runner/work/_actions/vmactions/freebsd-vm/v1/run.sh execSSHSH
Wed, 01 Oct 2025 06:08:28 GMT   Config file: freebsd-14.3.conf
Wed, 01 Oct 2025 06:08:28 GMT   Using CPython 3.11.13 interpreter at: /usr/local/bin/python3
Wed, 01 Oct 2025 06:08:28 GMT   Creating virtual environment at: .venv
Wed, 01 Oct 2025 06:08:28 GMT   Resolved 79 packages in 7ms
Wed, 01 Oct 2025 06:08:28 GMT      Building pyln-client @ file:///home/runner/work/lightning/lightning/contrib/pyln-client
Wed, 01 Oct 2025 06:08:28 GMT      Building pyln-grpc-proto @ file:///home/runner/work/lightning/lightning/contrib/pyln-grpc-proto
Wed, 01 Oct 2025 06:08:28 GMT      Building pyln-proto @ file:///home/runner/work/lightning/lightning/contrib/pyln-proto
Wed, 01 Oct 2025 06:08:28 GMT      Building pyln-bolt7 @ file:///home/runner/work/lightning/lightning/contrib/pyln-spec/bolt7
Wed, 01 Oct 2025 06:08:28 GMT      Building pyln-testing @ file:///home/runner/work/lightning/lightning/contrib/pyln-testing
Wed, 01 Oct 2025 06:08:28 GMT   Downloading pygments (1.2MiB)
Wed, 01 Oct 2025 06:08:28 GMT   Downloading setuptools (1.1MiB)
Wed, 01 Oct 2025 06:08:29 GMT      Building bitarray==3.7.1
Wed, 01 Oct 2025 06:08:29 GMT      Building markupsafe==3.0.3
Wed, 01 Oct 2025 06:08:29 GMT      Building crc32c==2.7.1
Wed, 01 Oct 2025 06:08:29 GMT      Building rpds-py==0.27.1
Wed, 01 Oct 2025 06:08:29 GMT      Building coincurve==21.0.0
Wed, 01 Oct 2025 06:08:29 GMT    Downloading pygments
Wed, 01 Oct 2025 06:08:29 GMT      Building psutil==7.1.0
Wed, 01 Oct 2025 06:08:29 GMT      Building psycopg2-binary==2.9.10
Wed, 01 Oct 2025 06:08:29 GMT      Building cffi==2.0.0
Wed, 01 Oct 2025 06:08:29 GMT    Downloading setuptools
Wed, 01 Oct 2025 06:08:29 GMT      Building cryptography==46.0.1
Wed, 01 Oct 2025 06:08:30 GMT         Built pyln-client @ file:///home/runner/work/lightning/lightning/contrib/pyln-client
Wed, 01 Oct 2025 06:08:30 GMT         Built pyln-testing @ file:///home/runner/work/lightning/lightning/contrib/pyln-testing
Wed, 01 Oct 2025 06:08:30 GMT         Built pyln-grpc-proto @ file:///home/runner/work/lightning/lightning/contrib/pyln-grpc-proto
Wed, 01 Oct 2025 06:08:30 GMT         Built pyln-bolt7 @ file:///home/runner/work/lightning/lightning/contrib/pyln-spec/bolt7
Wed, 01 Oct 2025 06:08:30 GMT         Built pyln-proto @ file:///home/runner/work/lightning/lightning/contrib/pyln-proto
Wed, 01 Oct 2025 06:08:32 GMT      Building grpcio-tools==1.75.1
Wed, 01 Oct 2025 06:08:32 GMT      Building grpcio==1.75.1
Wed, 01 Oct 2025 06:08:35 GMT         Built markupsafe==3.0.3
Wed, 01 Oct 2025 06:08:35 GMT         Built crc32c==2.7.1
Wed, 01 Oct 2025 06:08:40 GMT         Built bitarray==3.7.1
Wed, 01 Oct 2025 06:08:46 GMT         Built cffi==2.0.0
Wed, 01 Oct 2025 06:08:50 GMT         Built psutil==7.1.0
Wed, 01 Oct 2025 06:08:54 GMT         Built psycopg2-binary==2.9.10
Wed, 01 Oct 2025 06:19:41 GMT         Built rpds-py==0.27.1
Wed, 01 Oct 2025 06:20:41 GMT         Built cryptography==46.0.1
Wed, 01 Oct 2025 06:28:08 GMT         Built grpcio-tools==1.75.1
Wed, 01 Oct 2025 06:41:17 GMT         Built grpcio==1.75.1
Wed, 01 Oct 2025 07:24:36 GMT     × Failed to build `coincurve==21.0.0`
Wed, 01 Oct 2025 07:24:36 GMT     ├─▶ The build backend returned an error
Wed, 01 Oct 2025 07:24:36 GMT     ╰─▶ Call to `hatchling.build.build_wheel` failed (exit status: 1)
Wed, 01 Oct 2025 07:24:36 GMT
Wed, 01 Oct 2025 07:24:36 GMT         [stderr]
Wed, 01 Oct 2025 07:24:36 GMT         Traceback (most recent call last):
Wed, 01 Oct 2025 07:24:36 GMT           File "<string>", line 11, in <module>
Wed, 01 Oct 2025 07:24:36 GMT           File
Wed, 01 Oct 2025 07:24:36 GMT         "/root/.cache/uv/builds-v0/.tmpisps1h/lib/python3.11/site-packages/hatchling/build.py",
Wed, 01 Oct 2025 07:24:36 GMT         line 58, in build_wheel
Wed, 01 Oct 2025 07:24:36 GMT             return os.path.basename(next(builder.build(directory=wheel_directory,
Wed, 01 Oct 2025 07:24:36 GMT         versions=['standard'])))
Wed, 01 Oct 2025 07:24:36 GMT
Wed, 01 Oct 2025 07:24:36 GMT         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Wed, 01 Oct 2025 07:24:36 GMT           File
Wed, 01 Oct 2025 07:24:36 GMT         "/root/.cache/uv/builds-v0/.tmpisps1h/lib/python3.11/site-packages/hatchling/builders/plugin/interface.py",
Wed, 01 Oct 2025 07:24:36 GMT         line 147, in build
Wed, 01 Oct 2025 07:24:36 GMT             build_hook.initialize(version, build_data)
Wed, 01 Oct 2025 07:24:36 GMT           File
Wed, 01 Oct 2025 07:24:36 GMT         "/root/.cache/uv/sdists-v9/pypi/coincurve/21.0.0/DQ1iYVIp54KEKTujF5Poy/src/hatch_build.py",
Wed, 01 Oct 2025 07:24:36 GMT         line 34, in initialize
Wed, 01 Oct 2025 07:24:36 GMT             raise RuntimeError(message)
Wed, 01 Oct 2025 07:24:36 GMT         RuntimeError: Expected exactly one LICENSE file in cffi distribution,
Wed, 01 Oct 2025 07:24:36 GMT         got 0
Wed, 01 Oct 2025 07:24:36 GMT
Wed, 01 Oct 2025 07:24:36 GMT         hint: This usually indicates a problem with the package or the build
Wed, 01 Oct 2025 07:24:36 GMT         environment.
Wed, 01 Oct 2025 07:24:36 GMT     help: `coincurve` (v21.0.0) was included because `cln-meta-project` (v0.1.0)
Wed, 01 Oct 2025 07:24:36 GMT           depends on `pyln-proto` (v25.9) which depends on `coincurve`
```

Signed-off-by: Rusty Russell <[email protected]>

Author: rustyrussell