Kill off the .buildkite dir completely

.buildkite/.env

-CI
-BUILDKITE
-BUILDKITE_BUILD_NUMBER
-BUILDKITE_BUILD_NUMBER
-BUILDKITE_JOB_ID
-BUILDKITE_BUILD_URL
-BUILDKITE_PROJECT_SLUG
-BUILDKITE_COMMIT
-BUILDKITE_TAG
-CODECOV_TOKEN
-TRIAL_FLAGS

MANIFEST.in

@@ -44,7 +44,6 @@ include book.toml
 include pyproject.toml
 recursive-include changelog.d *
 
-prune .buildkite
 prune .circleci
 prune .github
 prune ci

scripts-dev/lint.sh

@@ -94,7 +94,7 @@ else
           "scripts-dev/build_debian_packages"
           "scripts-dev/sign_json"
           "scripts-dev/update_database"
-          "contrib" "synctl" "setup.py" "synmark" "stubs" ".buildkite"
+          "contrib" "synctl" "setup.py" "synmark" "stubs" "ci"
       )
   fi
 fi

tox.ini

@@ -49,7 +49,7 @@ lint_targets =
     contrib
     synctl
     synmark
-    .buildkite
+    ci
     docker
 
 # default settings for all tox environments