remove cirrus CI

.cirrus.yml

@@ -1,35 +0,0 @@
-# since CirrusCI has limited compute resources for free open-source projects
-# we only use it for its unique feature, FreeBSD images
-
-freebsd_instance:
-  image_family: freebsd-14-3
-
-task:
-  env:
-    CIRRUS_CLONE_DEPTH: 1
-    CIRRUS_CLONE_SUBMODULES: true
-    CIBW_BUILD_VERBOSITY: 3
-    CIBW_SKIP: pp* cp38-* # cp38-* has problem with x86_64 / arm64 confusion
-    CIBW_BUILD: cp39-* cp310-* cp311-* cp312-*
-  install_script: |
-    pkg install -y boost-build boost-libs openssl cmake ninja py311-pip
-    echo "using clang ;" > ~/user-config.jam
-  build_cmake_script: |
-    cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="-Werror" -DCMAKE_CXX_STANDARD=14 -Dbuild_tests=ON -Dbuild_examples=ON -Dbuild_tools=ON -Dpython-bindings=OFF -G Ninja .
-    cmake --build .
-    ./test/test_primitives
-  tests_script: |
-    cd test
-    b2 -l250 warnings-as-errors=on warnings=all crypto=openssl deterministic-tests include=/usr/local/include library-path=/usr/local/lib
-  enum_if_script: |
-    cd test
-    b2 -l250 warnings-as-errors=on warnings=all crypto=openssl stage_enum_if stage_dependencies include=/usr/local/include library-path=/usr/local/lib
-    LD_LIBRARY_PATH=./dependencies ./enum_if
-# it appears cibuildwheel does not support FreeBSD (nor CirrusCI)
-#  install_cibuildwheel_script:
-#    - python -m pip install cibuildwheel==2.16.5
-#  run_cibuildwheel_script:
-#    - cibuildwheel
-#  wheels_artifacts:
-#    path: "wheelhouse/*"
-

README.rst

@@ -15,9 +15,6 @@
 .. image:: https://ci.appveyor.com/api/projects/status/w7teauvub5813mew/branch/RC_2_0?svg=true
     :target: https://ci.appveyor.com/project/arvidn/libtorrent/branch/RC_2_0
 
-.. image:: https://api.cirrus-ci.com/github/arvidn/libtorrent.svg?branch=RC_2_0
-    :target: https://cirrus-ci.com/github/arvidn/libtorrent
-
 .. image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/libtorrent.svg
     :target: https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&q=proj%3Alibtorrent&can=1