Simplify replay_timestamp_validation

src/onionrcrypto/cryptoutils/replayvalidation.py

@@ -1,6 +1,3 @@
 from onionrutils import epoch
 def replay_timestamp_validation(timestamp):
-    if epoch.get_epoch() - int(timestamp) > 2419200:
+    return epoch.get_epoch() - int(timestamp) <= 2419200
-        return False
-    else:
-        return True