fix(core/ethereum): use built-in ethereum_pubkeyhash() in get_address

core/src/apps/ethereum/get_address.py

@@ -1,5 +1,3 @@
-from trezor.crypto.curve import secp256k1
-from trezor.crypto.hashlib import sha3_256
 from trezor.messages import EthereumAddress
 from trezor.ui.layouts import show_address
 
@@ -23,15 +21,12 @@ async def get_address(
     await paths.validate_path(ctx, keychain, msg.address_n)
 
     node = keychain.derive(msg.address_n)
-    seckey = node.private_key()
-    public_key = secp256k1.publickey(seckey, False)  # uncompressed
-    address_bytes = sha3_256(public_key[1:], keccak=True).digest()[12:]
 
     if len(msg.address_n) > 1:  # path has slip44 network identifier
         network = networks.by_slip44(msg.address_n[1] & 0x7FFF_FFFF)
     else:
         network = None
-    address = address_from_bytes(address_bytes, network)
+    address = address_from_bytes(node.ethereum_pubkeyhash(), network)
 
     if msg.show_display:
         title = paths.address_n_to_str(msg.address_n)