diff --git a/keystore2/src/vintf/lib.rs b/keystore2/src/vintf/lib.rs
index 89e18eb..08384bd 100644
--- a/keystore2/src/vintf/lib.rs
+++ b/keystore2/src/vintf/lib.rs
@@ -19,14 +19,6 @@
     unsafe extern "C++" {
         include!("vintf.hpp");
 
-        /// Gets all HAL names.
-        /// Note that this is not a zero-cost shim: it will make copies of the strings.
-        fn get_hal_names() -> Vec<String>;
-
-        /// Gets all HAL names and versions.
-        /// Note that this is not a zero-cost shim: it will make copies of the strings.
-        fn get_hal_names_and_versions() -> Vec<String>;
-
         /// Gets the instances of the given package, version, and interface tuple.
         /// Note that this is not a zero-cost shim: it will make copies of the strings.
         fn get_hidl_instances(
@@ -43,20 +35,3 @@
 }
 
 pub use ffi::*;
-
-#[cfg(test)]
-mod tests {
-
-    use super::*;
-
-    #[test]
-    fn test() {
-        let names = get_hal_names();
-        assert_ne!(names.len(), 0);
-
-        let names_and_versions = get_hal_names_and_versions();
-        assert_ne!(names_and_versions.len(), 0);
-
-        assert!(names_and_versions.len() >= names.len());
-    }
-}
diff --git a/keystore2/src/vintf/vintf.cpp b/keystore2/src/vintf/vintf.cpp
index 00625bf..a550b10 100644
--- a/keystore2/src/vintf/vintf.cpp
+++ b/keystore2/src/vintf/vintf.cpp
@@ -26,18 +26,6 @@
     return result;
 }
 
-rust::Vec<rust::String> get_hal_names() {
-    const auto manifest = android::vintf::VintfObject::GetDeviceHalManifest();
-    const auto names = manifest->getHalNames();
-    return convert(names);
-}
-
-rust::Vec<rust::String> get_hal_names_and_versions() {
-    const auto manifest = android::vintf::VintfObject::GetDeviceHalManifest();
-    const auto names = manifest->getHalNamesAndVersions();
-    return convert(names);
-}
-
 rust::Vec<rust::String> get_hidl_instances(rust::Str package, size_t major_version,
                                            size_t minor_version, rust::Str interfaceName) {
     android::vintf::Version version(major_version, minor_version);
diff --git a/keystore2/src/vintf/vintf.hpp b/keystore2/src/vintf/vintf.hpp
index dbc88f0..c4a7ef6 100644
--- a/keystore2/src/vintf/vintf.hpp
+++ b/keystore2/src/vintf/vintf.hpp
@@ -18,8 +18,6 @@
 
 #include "rust/cxx.h"
 
-rust::Vec<rust::String> get_hal_names();
-rust::Vec<rust::String> get_hal_names_and_versions();
 rust::Vec<rust::String> get_hidl_instances(rust::Str package, size_t major_version,
                                            size_t minor_version, rust::Str interfaceName);
 rust::Vec<rust::String> get_aidl_instances(rust::Str package, size_t version,