diff --git a/BUILD.bazel b/BUILD.bazel
index 3451b4e75..95557a35b 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -17,30 +17,12 @@ COPTS = [
     "-Werror=old-style-cast",
 ]
 
-config_setting(
-    name = "qnx",
-    constraint_values = ["@platforms//os:qnx"],
-    values = {
-        "cpu": "x64_qnx",
-    },
-    visibility = [":__subpackages__"],
-)
-
 config_setting(
     name = "windows",
     constraint_values = ["@platforms//os:windows"],
-    values = {
-        "cpu": "x64_windows",
-    },
     visibility = [":__subpackages__"],
 )
 
-config_setting(
-    name = "macos",
-    constraint_values = ["@platforms//os:macos"],
-    visibility = ["//visibility:public"],
-)
-
 config_setting(
     name = "perfcounters",
     define_values = {