Remove gas sim from example

Author: hanssun123

examples/chain_client/0_LocalOrderHash.py

@@ -97,27 +97,17 @@ async def main() -> None:
     print("computed spot order hashes", order_hashes.spot)
     print("computed derivative order hashes", order_hashes.derivative)
 
-    # build sim tx 1
+    # build tx 1
     tx = (
         Transaction()
         .with_messages(spot_msg, deriv_msg)
         .with_sequence(client.get_sequence())
         .with_account_num(client.get_number())
         .with_chain_id(network.chain_id)
     )
-    sim_sign_doc = tx.get_sign_doc(pub_key)
-    sim_sig = priv_key.sign(sim_sign_doc.SerializeToString())
-    sim_tx_raw_bytes = tx.get_tx_data(sim_sig, pub_key)
-
-    # simulate tx
-    (sim_res, success) = await client.simulate_tx(sim_tx_raw_bytes)
-    if not success:
-        print(sim_res)
-        return
-
-    # build tx
     gas_price = 500000000
-    gas_limit = sim_res.gas_info.gas_used + 20000  # add 20k for gas, fee computation
+    base_gas = 85000
+    gas_limit = base_gas + 20000  # add 20k for gas, fee computation
     gas_fee = '{:.18f}'.format((gas_price * gas_limit) / pow(10, 18)).rstrip('0')
     fee = [composer.Coin(
         amount=gas_price * gas_limit,
@@ -141,27 +131,17 @@ async def main() -> None:
     print("computed spot order hashes", order_hashes.spot)
     print("computed derivative order hashes", order_hashes.derivative)
 
-    # build sim tx 2
+    # build tx 2
     tx = (
         Transaction()
         .with_messages(spot_msg, deriv_msg)
         .with_sequence(client.get_sequence())
         .with_account_num(client.get_number())
         .with_chain_id(network.chain_id)
     )
-    sim_sign_doc = tx.get_sign_doc(pub_key)
-    sim_sig = priv_key.sign(sim_sign_doc.SerializeToString())
-    sim_tx_raw_bytes = tx.get_tx_data(sim_sig, pub_key)
-
-    # simulate tx
-    (sim_res, success) = await client.simulate_tx(sim_tx_raw_bytes)
-    if not success:
-        print(sim_res)
-        return
-
-    # build tx
     gas_price = 500000000
-    gas_limit = sim_res.gas_info.gas_used + 20000  # add 20k for gas, fee computation
+    base_gas = 85000
+    gas_limit = base_gas + 20000  # add 20k for gas, fee computation
     gas_fee = '{:.18f}'.format((gas_price * gas_limit) / pow(10, 18)).rstrip('0')
     fee = [composer.Coin(
         amount=gas_price * gas_limit,
@@ -239,27 +219,17 @@ async def main() -> None:
     print("computed spot order hashes", order_hashes.spot)
     print("computed derivative order hashes", order_hashes.derivative)
 
-    # build sim tx 3
+    # build tx 3
     tx = (
         Transaction()
         .with_messages(spot_msg, deriv_msg)
         .with_sequence(client.get_sequence())
         .with_account_num(client.get_number())
         .with_chain_id(network.chain_id)
     )
-    sim_sign_doc = tx.get_sign_doc(pub_key)
-    sim_sig = priv_key.sign(sim_sign_doc.SerializeToString())
-    sim_tx_raw_bytes = tx.get_tx_data(sim_sig, pub_key)
-
-    # simulate tx
-    (sim_res, success) = await client.simulate_tx(sim_tx_raw_bytes)
-    if not success:
-        print(sim_res)
-        return
-
-    # build tx
     gas_price = 500000000
-    gas_limit = sim_res.gas_info.gas_used + 20000  # add 20k for gas, fee computation
+    base_gas = 85000
+    gas_limit = base_gas + 20000  # add 20k for gas, fee computation
     gas_fee = '{:.18f}'.format((gas_price * gas_limit) / pow(10, 18)).rstrip('0')
     fee = [composer.Coin(
         amount=gas_price * gas_limit,