diff --git a/sys/x86/acpica/OsdEnvironment.c b/sys/x86/acpica/OsdEnvironment.c
--- a/sys/x86/acpica/OsdEnvironment.c
+++ b/sys/x86/acpica/OsdEnvironment.c
@@ -66,16 +66,6 @@
 	if (TUNABLE_ULONG_FETCH("acpi.rsdp", &acpi_root))
 		return (acpi_root);
 
-	/*
-	 * The hints mechanism is unreliable (it fails if anybody ever
-	 * compiled in hints to the kernel). It has been replaced
-	 * by the tunable method, but is used here as a fallback to
-	 * retain maximum compatibility between old loaders and new
-	 * kernels. It can be removed after 11.0R.
-	 */
-	if (resource_long_value("acpi", 0, "rsdp", &acpi_root) == 0)
-		return (acpi_root);
-
 	return (0);
 }