Remove option for strict concurrency checking (#5910)

.buildkite/pipeline.yml

@@ -5,12 +5,6 @@ steps:
       - bazel build :swiftlint
       - echo "+++ Test"
       - bazel test --test_output=errors //Tests/...
-  - label: "Build With Strict Concurrency"
-    commands:
-      - echo "+++ Build"
-      - bazel build --define strict_concurrency_builtin_rules=true :swiftlint
-      - echo "--- Clean up"
-      - git reset --hard
   - label: "SwiftPM"
     commands:
       - echo "+++ Test"

BUILD

@@ -8,11 +8,6 @@ load(
     "universal_swift_compiler_plugin",
 )
 
-config_setting(
-    name = "strict_concurrency_builtin_rules",
-    values = {"define": "strict_concurrency_builtin_rules=true"},
-)
-
 bool_flag(
     name = "universal_tools",
     build_setting_default = False,