diff --git a/BUILD.bazel b/BUILD.bazel
index a5242a0ae9a1..6a203dc242c8 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -1616,7 +1616,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/adjtick.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1629,7 +1628,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/alarmtimer-suspend.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1642,7 +1640,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/change_skew.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1660,7 +1657,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/clocksource-switch.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1677,7 +1673,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/freq-step.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1691,7 +1686,6 @@ cc_binary_with_abi(
     out = "inconsistency-check",
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1704,7 +1698,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/leap-a-day.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1717,7 +1710,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/leapcrash.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1731,7 +1723,6 @@ cc_binary_with_abi(
     out = "nanosleep",
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1745,7 +1736,6 @@ cc_binary_with_abi(
     out = "nsleep-lat",
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1758,7 +1748,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/posix_timers.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1772,7 +1761,6 @@ cc_binary_with_abi(
     out = "raw_skew",
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1785,7 +1773,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/set-2038.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1803,7 +1790,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/set-tai.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1816,7 +1802,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/set-timer-lat.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1829,7 +1814,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/set-tz.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1842,7 +1826,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/skew_consistency.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1858,7 +1841,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/threadtest.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],
@@ -1871,7 +1853,6 @@ cc_binary_with_abi(
     srcs = ["tools/testing/selftests/timers/valid-adjtimex.c"],
     copts = [
         "-O3",
-        "-DKTEST",
     ],
     path_prefix = _KSELFTEST_DIR,
     target_compatible_with = ["@platforms//os:android"],