Blacklist fixes + depreciation of old signatures (#1240)

* fixes blacklist error message + remove

* remove checks for parse signature

* remove sign v1 tests

* fix for the syanpse checks

* fix tests and remove duplicate sign

bittensor/_axon/__init__.py

@@ -295,7 +295,9 @@ def __init__(
         self.receiver_hotkey = receiver_hotkey
 
 
-    def parse_signature_v2(self, signature: str) -> Optional[Tuple[int, str, str, str]]:
+    def parse_signature_v2(
+        self, signature: str
+    ) -> Union[Tuple[int, str, str, str, int], None]:
         r"""Attempts to parse a signature using the v2 format"""
         parts = signature.split(".")
         if len(parts) != 4:
@@ -317,6 +319,7 @@ def parse_signature(self, metadata: Dict[str, str]) -> Tuple[int, str, str, str]
             raise Exception("Request signature missing")
         if int(version) < 370:
             raise Exception("Incorrect Version")
+
         parts = self.parse_signature_v2(signature)
         if parts is not None:
             return parts