diff --git a/devices/Cargo.toml b/devices/Cargo.toml
index bbf2884f88..ddcb783d3c 100644
--- a/devices/Cargo.toml
+++ b/devices/Cargo.toml
@@ -9,7 +9,7 @@ audio = []
 audio_cras = ["libcras"]
 direct = []
 gpu = ["gpu_display","rutabaga_gfx"]
-tpm = ["protos/trunks", "tpm2"]
+tpm = ["tpm2"]
 usb = []
 video-decoder = ["libvda"]
 video-encoder = ["libvda"]
diff --git a/protos/Cargo.toml b/protos/Cargo.toml
index 98cd4ae2d2..d4286e6797 100644
--- a/protos/Cargo.toml
+++ b/protos/Cargo.toml
@@ -7,7 +7,6 @@ edition = "2018"
 [features]
 plugin = ["kvm_sys"]
 composite-disk = []
-trunks = []
 
 [dependencies]
 kvm_sys = { path = "../kvm_sys", optional = true }
diff --git a/protos/build.rs b/protos/build.rs
index 37ab8b39a2..5aa3ca2558 100644
--- a/protos/build.rs
+++ b/protos/build.rs
@@ -29,15 +29,7 @@ struct ExternalProto {
 
 // Rustfmt bug: https://github.com/rust-lang/rustfmt/issues/3498
 #[rustfmt::skip]
-static EXTERNAL_PROTOS: &[ExternalProto] = &[
-    #[cfg(feature = "trunks")]
-    ExternalProto {
-        dir_relative_to_sysroot: "usr/include/chromeos/dbus/trunks",
-        dir_relative_to_us: "../../../platform2/trunks",
-        proto_file_name: "trunks_interface.proto",
-        module: "trunks",
-    },
-];
+static EXTERNAL_PROTOS: &[ExternalProto] = &[];
 
 struct LocalProto {
     // Corresponding to the input file src/$module.proto.
diff --git a/protos/src/lib.rs b/protos/src/lib.rs
index d73fb0352f..32c27eb5d7 100644
--- a/protos/src/lib.rs
+++ b/protos/src/lib.rs
@@ -9,8 +9,5 @@ mod generated {
 #[cfg(feature = "plugin")]
 pub mod plugin;
 
-#[cfg(feature = "trunks")]
-pub use generated::trunks;
-
 #[cfg(feature = "composite-disk")]
 pub use generated::cdisk_spec;
diff --git a/protos/tests/trunks.rs b/protos/tests/trunks.rs
deleted file mode 100644
index 39723ae746..0000000000
--- a/protos/tests/trunks.rs
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2019 The Chromium OS Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#![cfg(feature = "trunks")]
-
-mod common;
-
-use crate::common::test_round_trip;
-use protos::trunks::{SendCommandRequest, SendCommandResponse};
-
-#[test]
-fn send_command_request() {
-    let mut request = SendCommandRequest::new();
-    request.set_command(b"...".to_vec());
-    test_round_trip(request);
-}
-
-#[test]
-fn send_command_response() {
-    let mut response = SendCommandResponse::new();
-    response.set_response(b"...".to_vec());
-    test_round_trip(response);
-}