chore(core): delete unused code in src

[no changelog]

core/src/apps/bitcoin/sign_tx/approvers.py

@@ -212,14 +212,13 @@ class BasicApprover(Approver):
     async def add_payment_request(
         self, msg: TxAckPaymentRequest, keychain: Keychain
     ) -> None:
-        from trezor.ui.components.common.confirm import INFO
-
         await super().add_payment_request(msg, keychain)
         if msg.amount is None:
             raise DataError("Missing payment request amount.")
 
         result = await helpers.confirm_payment_request(msg, self.coin, self.amount_unit)
-        self.show_payment_req_details = result is INFO
+        # When user wants to see more info, the result will be False.
+        self.show_payment_req_details = result is False
 
     async def approve_orig_txids(
         self, tx_info: TxInfo, orig_txs: list[OriginalTxInfo]

core/src/apps/cardano/auxiliary_data.py

@@ -14,10 +14,6 @@ if TYPE_CHECKING:
     Delegations = list[tuple[bytes, int]]
     GovernanceRegistrationPayload = dict[int, Delegations | bytes | int]
     SignedGovernanceRegistrationPayload = tuple[GovernanceRegistrationPayload, bytes]
-    GovernanceRegistrationSignature = dict[int, bytes]
-    GovernanceRegistration = dict[
-        int, GovernanceRegistrationPayload | GovernanceRegistrationSignature
-    ]
 
     from trezor import messages
     from trezor.wire import Context

core/src/apps/cardano/helpers/credential.py

@@ -31,7 +31,7 @@ class Credential:
     is_no_staking: bool = False
     is_mismatch: bool = False
     is_unusual_path: bool = False
-    is_other_warning: bool = False
+    is_other_warning: bool = False  # TODO: this seems to be unused
 
     def __init__(
         self,

core/src/storage/cache.py

@@ -220,10 +220,6 @@ def end_current_session() -> None:
     _active_session_idx = None
 
 
-def is_session_started() -> bool:
-    return _active_session_idx is not None
-
-
 def set(key: int, value: bytes) -> None:
     if key & _SESSIONLESS_FLAG:
         _SESSIONLESS_CACHE.set(key ^ _SESSIONLESS_FLAG, value)

core/src/storage/device.py

@@ -144,10 +144,6 @@ def set_passphrase_enabled(enable: bool) -> None:
         set_passphrase_always_on_device(False)
 
 
-def get_homescreen() -> bytes | None:
-    return common.get(_NAMESPACE, _HOMESCREEN, public=True)
-
-
 def set_homescreen(homescreen: bytes) -> None:
     if len(homescreen) > HOMESCREEN_MAXSIZE:
         raise ValueError  # homescreen too large

core/src/trezor/crypto/slip39.py

@@ -103,25 +103,6 @@ _SECRET_INDEX = const(255)
 _DIGEST_INDEX = const(254)
 """The index of the share containing the digest of the shared secret."""
 
-
-# === Keyboard functions ===
-
-KEYBOARD_FULL_MASK = const(0x1FF)
-"""All buttons are allowed. 9-bit bitmap all set to 1."""
-
-
-def word_completion_mask(prefix: str) -> int:
-    if not prefix:
-        return KEYBOARD_FULL_MASK
-    return slip39.word_completion_mask(int(prefix))
-
-
-def button_sequence_to_word(prefix: str) -> str:
-    if not prefix:
-        return ""
-    return slip39.button_sequence_to_word(int(prefix))
-
-
 # === External API ===
 
 MAX_SHARE_COUNT = const(16)

core/src/trezor/loop.py

@@ -223,10 +223,6 @@ class Syscall:
         pass
 
 
-SLEEP_FOREVER = Syscall()
-"""Tasks awaiting `SLEEP_FOREVER` will never be resumed."""
-
-
 class sleep(Syscall):
     """Pause current task and resume it after given delay.
 

core/src/trezor/utils.py

@@ -136,16 +136,6 @@ def chunks(items: Chunkable, size: int) -> Iterator[Chunkable]:
         yield items[i : i + size]
 
 
-def chunks_intersperse(items: str, size: int, sep: str = "\n") -> Iterator[str]:
-    first = True
-    for i in range(0, len(items), size):
-        if not first:
-            yield sep
-        else:
-            first = False
-        yield items[i : i + size]
-
-
 if TYPE_CHECKING:
 
     class HashContext(Protocol):

core/tests/test_storage.cache.py

@@ -11,6 +11,11 @@ from apps.base import handle_Initialize, handle_EndSession
 KEY = 0
 
 
+# Function moved from cache.py, as it was not used there
+def is_session_started() -> bool:
+    return cache._active_session_idx is not None
+
+
 class TestStorageCache(unittest.TestCase):
     def setUp(self):
         cache.clear_all()
@@ -29,15 +34,15 @@ class TestStorageCache(unittest.TestCase):
 
     def test_end_session(self):
         session_id = cache.start_session()
-        self.assertTrue(cache.is_session_started())
+        self.assertTrue(is_session_started())
         cache.set(KEY, b"A")
         cache.end_current_session()
-        self.assertFalse(cache.is_session_started())
+        self.assertFalse(is_session_started())
         self.assertRaises(cache.InvalidSessionError, cache.get, KEY)
 
         # ending an ended session should be a no-op
         cache.end_current_session()
-        self.assertFalse(cache.is_session_started())
+        self.assertFalse(is_session_started())
 
         session_id_a = cache.start_session(session_id)
         # original session no longer exists
@@ -217,10 +222,10 @@ class TestStorageCache(unittest.TestCase):
     def test_EndSession(self):
         self.assertRaises(cache.InvalidSessionError, cache.get, KEY)
         session_id = cache.start_session()
-        self.assertTrue(cache.is_session_started())
+        self.assertTrue(is_session_started())
         self.assertIsNone(cache.get(KEY))
         await_result(handle_EndSession(DUMMY_CONTEXT, EndSession()))
-        self.assertFalse(cache.is_session_started())
+        self.assertFalse(is_session_started())
         self.assertRaises(cache.InvalidSessionError, cache.get, KEY)