message: qa: Remove unused deserialization code in msg_version
diff: @@ -909,21 +909,12 @@ class msg_version():
  self.addrTo = CAddress()
  self.addrTo.deserialize(f, False)
  - if self.nVersion >= 106:
  self.addrFrom = CAddress()
  self.addrFrom.deserialize(f, False)
  self.nNonce = struct.unpack("<Q", f.read(8))[0]
  self.strSubVer = deser_string(f)
  - else:
  - self.addrFrom = None
  - self.nNonce = None
  - self.strSubVer = None
  - self.nStartingHeight = None
  - if self.nVersion >= 209:
  self.nStartingHeight = struct.unpack("<i", f.read(4))[0]
  - else:
  - self.nStartingHeight = None
  if self.nVersion >= 70001:
  # Relay field is optional for version 70001 onwards
  