style: drop tokens.py from style checks

because pyflakes / stdlib's ast will exceed recursion depth
while analyzing the main function

core/src/apps/ethereum/tokens.py

@@ -1,7 +1,7 @@
 # generated from tokens.py.mako
 # do not edit manually!
-
-
+# flake8: noqa
+# fmt: off
 
 UNKNOWN_TOKEN = (None, None, None, None)
 
@@ -9,7 +9,6 @@ UNKNOWN_TOKEN = (None, None, None, None)
 def token_by_chain_address(chain_id, address):
     if False:
         pass
-    # fmt: off
     elif chain_id == 1:
         if False:
             pass
@@ -2293,5 +2292,4 @@ def token_by_chain_address(chain_id, address):
             return (chain_id, address, "DGT", 0)  # esn / DGT
         elif address == b"\x01\x46\xb9\xdc\xd9\xfb\x2a\xbc\x1b\x5b\x13\x6c\x28\xd2\x0d\x00\x37\x52\x69\x61":
             return (chain_id, address, "TOPM", 18)  # esn / TOPM
-    # fmt: on
     return UNKNOWN_TOKEN

core/src/apps/ethereum/tokens.py.mako

@@ -1,6 +1,7 @@
 # generated from tokens.py.mako
 # do not edit manually!
-
+# flake8: noqa
+# fmt: off
 <%
 from collections import defaultdict
 
@@ -9,7 +10,7 @@ def group_tokens(tokens):
     for t in sorted(tokens, key=lambda t: t.chain_id):
         r[t.chain_id].append(t)
     return r
-%>
+%>\
 
 UNKNOWN_TOKEN = (None, None, None, None)
 
@@ -17,7 +18,6 @@ UNKNOWN_TOKEN = (None, None, None, None)
 def token_by_chain_address(chain_id, address):
     if False:
         pass
-    # fmt: off
 % for token_chain_id, tokens in group_tokens(supported_on("trezor2", erc20)).items():
     elif chain_id == ${token_chain_id}:
         if False:
@@ -27,5 +27,4 @@ def token_by_chain_address(chain_id, address):
             return (chain_id, address, ${black_repr(t.symbol)}, ${t.decimals})  # ${t.chain} / ${t.name.strip()}
         % endfor
 % endfor
-    # fmt: on
     return UNKNOWN_TOKEN