bitbox02_rust/ui: inline trinary_choice

diff --git a/src/rust/bitbox02-rust/src/hal/bitbox02/ui.rs b/src/rust/bitbox02-rust/src/hal/bitbox02/ui.rs
index 02213d8..aebf319 100644
--- a/src/rust/bitbox02-rust/src/hal/bitbox02/ui.rs
+++ b/src/rust/bitbox02-rust/src/hal/bitbox02/ui.rs
@@ -3,9 +3,7 @@
 use alloc::string::String;
 
 use crate::hal::Ui;
-use crate::workflow::{
-    cancel, confirm, mnemonic, sdcard, transaction, trinary_choice, trinary_input_string,
-};
+use crate::workflow::{cancel, confirm, mnemonic, sdcard, transaction, trinary_input_string};
 
 pub(crate) struct BitBox02Ui;
 
@@ -96,8 +94,8 @@ impl Ui for BitBox02Ui {
         label_left: Option<&str>,
         label_middle: Option<&str>,
         label_right: Option<&str>,
-    ) -> trinary_choice::TrinaryChoice {
-        trinary_choice::choose(message, label_left, label_middle, label_right).await
+    ) -> bitbox02::ui::TrinaryChoice {
+        bitbox02::ui::trinary_choice(message, label_left, label_middle, label_right).await
     }
 
     async fn show_mnemonic(&mut self, words: &[&str]) -> Result<(), cancel::Error> {
diff --git a/src/rust/bitbox02-rust/src/hal/testing/ui.rs b/src/rust/bitbox02-rust/src/hal/testing/ui.rs
index dbd0958..4525d8d 100644
--- a/src/rust/bitbox02-rust/src/hal/testing/ui.rs
+++ b/src/rust/bitbox02-rust/src/hal/testing/ui.rs
@@ -1,9 +1,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use crate::hal::Ui;
-use crate::workflow::{
-    cancel, confirm, sdcard, transaction, trinary_choice, trinary_input_string,
-};
+use crate::workflow::{cancel, confirm, sdcard, transaction, trinary_input_string};
 
 use alloc::boxed::Box;
 use alloc::string::String;
@@ -146,7 +144,7 @@ impl Ui for TestingUi<'_> {
         _label_left: Option<&str>,
         _label_middle: Option<&str>,
         _label_right: Option<&str>,
-    ) -> trinary_choice::TrinaryChoice {
+    ) -> bitbox02::ui::TrinaryChoice {
         todo!("not used in unit tests yet");
     }
 
diff --git a/src/rust/bitbox02-rust/src/hal/ui.rs b/src/rust/bitbox02-rust/src/hal/ui.rs
index 12a9f97..e488fe1 100644
--- a/src/rust/bitbox02-rust/src/hal/ui.rs
+++ b/src/rust/bitbox02-rust/src/hal/ui.rs
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: Apache-2.0
 
-use crate::workflow::{cancel, confirm, mnemonic, sdcard, transaction, trinary_choice, trinary_input_string};
+use crate::workflow::{cancel, confirm, mnemonic, sdcard, transaction, trinary_input_string};
 
 use alloc::string::String;
 
@@ -45,7 +45,7 @@ pub trait Ui {
         label_left: Option<&str>,
         label_middle: Option<&str>,
         label_right: Option<&str>,
-    ) -> trinary_choice::TrinaryChoice;
+    ) -> bitbox02::ui::TrinaryChoice;
 
     /// Display the BIP39 mnemonic to the user.
     async fn show_mnemonic(&mut self, words: &[&str]) -> Result<(), cancel::Error>;
diff --git a/src/rust/bitbox02-rust/src/hww/api/bip85.rs b/src/rust/bitbox02-rust/src/hww/api/bip85.rs
index 0286bb7..4bd3fbf 100644
--- a/src/rust/bitbox02-rust/src/hww/api/bip85.rs
+++ b/src/rust/bitbox02-rust/src/hww/api/bip85.rs
@@ -31,8 +31,8 @@ pub async fn process(
 /// Derives and displays a BIP-39 seed according to BIP-85:
 /// https://github.com/bitcoin/bips/blob/master/bip-0085.mediawiki#bip39.
 async fn process_bip39(hal: &mut impl crate::hal::Hal) -> Result<(), Error> {
-    use crate::workflow::trinary_choice::TrinaryChoice;
     use crate::workflow::trinary_input_string;
+    use bitbox02::ui::TrinaryChoice;
 
     hal.ui()
         .confirm(&confirm::Params {
diff --git a/src/rust/bitbox02-rust/src/workflow.rs b/src/rust/bitbox02-rust/src/workflow.rs
index 08edc24..78e5551 100644
--- a/src/rust/bitbox02-rust/src/workflow.rs
+++ b/src/rust/bitbox02-rust/src/workflow.rs
@@ -12,7 +12,6 @@ pub mod pairing;
 pub mod password;
 pub mod sdcard;
 pub mod transaction;
-pub mod trinary_choice;
 pub mod trinary_input_string;
 pub mod unlock;
 pub mod unlock_animation;
diff --git a/src/rust/bitbox02-rust/src/workflow/mnemonic.rs b/src/rust/bitbox02-rust/src/workflow/mnemonic.rs
index f5bfe5f..a36a5a2 100644
--- a/src/rust/bitbox02-rust/src/workflow/mnemonic.rs
+++ b/src/rust/bitbox02-rust/src/workflow/mnemonic.rs
@@ -2,12 +2,12 @@
 
 pub use super::cancel::Error as CancelError;
 use super::confirm;
-use super::trinary_choice::TrinaryChoice;
 use super::trinary_input_string;
 
 use alloc::string::String;
 use alloc::vec::Vec;
 
+use bitbox02::ui::TrinaryChoice;
 use sha2::{Digest, Sha256};
 
 const NUM_RANDOM_WORDS: u8 = 5;
diff --git a/src/rust/bitbox02-rust/src/workflow/trinary_choice.rs b/src/rust/bitbox02-rust/src/workflow/trinary_choice.rs
deleted file mode 100644
index dda1d7d..0000000
--- a/src/rust/bitbox02-rust/src/workflow/trinary_choice.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-
-pub use bitbox02::ui::TrinaryChoice;
-use bitbox02::ui::trinary_choice;
-
-pub async fn choose(
-    message: &str,
-    label_left: Option<&str>,
-    label_middle: Option<&str>,
-    label_right: Option<&str>,
-) -> TrinaryChoice {
-    trinary_choice(message, label_left, label_middle, label_right).await
-}