diff --git a/client-hints/accept-ch-feature-policy-navigation.https.html b/client-hints/accept-ch-feature-policy-navigation.https.html
index c072a86f963ecb9..4a9c0c8c141b6ba 100644
--- a/client-hints/accept-ch-feature-policy-navigation.https.html
+++ b/client-hints/accept-ch-feature-policy-navigation.https.html
@@ -16,11 +16,6 @@
     "sec-ch-device-memory=true&device-memory=true&sec-ch-dpr=false&dpr=false&sec-ch-viewport-width=true&viewport-width=true&sec-ch-ua=true&sec-ch-ua-mobile=false",
     "",
     "Client hints loaded on same-origin iframe request with feature policy.");
-  await test_frame(
-    "HTTPS_REMOTE_ORIGIN",
-    "",
-    "",
-    "Iframe trying to set Accept-CH-Lifetime.", "/client-hints/resources/iframe-accept-ch-lifetime.html");
   await test_frame(
     "HTTPS_REMOTE_ORIGIN",
     "sec-ch-device-memory=true&device-memory=true&sec-ch-dpr=false&dpr=false&sec-ch-viewport-width=false&viewport-width=false&sec-ch-ua=false&sec-ch-ua-mobile=false",
diff --git a/client-hints/accept-ch-feature-policy-navigation.https.html.headers b/client-hints/accept-ch-feature-policy-navigation.https.html.headers
index cf65e4825a0501a..f8ba9890998ba71 100644
--- a/client-hints/accept-ch-feature-policy-navigation.https.html.headers
+++ b/client-hints/accept-ch-feature-policy-navigation.https.html.headers
@@ -1,3 +1,2 @@
 Accept-CH: Sec-CH-Device-Memory, Device-Memory, Sec-CH-DPR, DPR, Sec-CH-Viewport-Width, Viewport-Width
-Accept-CH-Lifetime: 100
 Feature-Policy: ch-device-memory *; ch-dpr 'none'; ch-viewport-width 'self'; ch-ua 'self'; ch-ua-mobile 'none'; ch-prefers-color-scheme 'none'
diff --git a/client-hints/accept-ch-no-feature-policy-navigation.https.html.headers b/client-hints/accept-ch-no-feature-policy-navigation.https.html.headers
index 96a641457bb9ecb..8296ffda408c3b0 100644
--- a/client-hints/accept-ch-no-feature-policy-navigation.https.html.headers
+++ b/client-hints/accept-ch-no-feature-policy-navigation.https.html.headers
@@ -1,2 +1 @@
 Accept-CH: Sec-CH-Device-Memory, Device-Memory, Sec-CH-DPR, DPR, Sec-CH-Viewport-Width, Viewport-Width
-Accept-CH-Lifetime: 100
diff --git a/client-hints/resources/iframe-accept-ch-lifetime.html b/client-hints/resources/iframe-accept-ch-lifetime.html
deleted file mode 100644
index 693e4f94dcc3363..000000000000000
--- a/client-hints/resources/iframe-accept-ch-lifetime.html
+++ /dev/null
@@ -1,3 +0,0 @@
-<script>
-  window.parent.postMessage('PASS', '*');
-</script>
diff --git a/client-hints/resources/iframe-accept-ch-lifetime.html.headers b/client-hints/resources/iframe-accept-ch-lifetime.html.headers
deleted file mode 100644
index 9278606cfa8778a..000000000000000
--- a/client-hints/resources/iframe-accept-ch-lifetime.html.headers
+++ /dev/null
@@ -1,4 +0,0 @@
-Accept-CH: Sec-CH-DPR,DPR
-Accept-CH-Lifetime: 1
-Access-Control-Allow-Origin: *
-