Remove economic protocol handling

Cargo.toml

@@ -5,7 +5,6 @@ members = [
     # Test contracts
     "contracts/alice",
     "contracts/bob",
-    "contracts/charlie",
     "contracts/host_fn",
 
     # Genesis contracts

contracts/Makefile

@@ -1,4 +1,4 @@
-SUBDIRS := alice bob charlie license transfer stake host_fn
+SUBDIRS := alice bob license transfer stake host_fn
 
 all: $(SUBDIRS) ## Build all the contracts
 

contracts/stake/tests/common/utils.rs

@@ -22,8 +22,7 @@ use execution_core::{
     SecretKey, Sender, TxSkeleton, ViewKey,
 };
 use rusk_abi::{
-    CallReceipt, ContractError, ContractId, EconomicMode, Error, Session,
-    TRANSFER_CONTRACT,
+    CallReceipt, ContractError, ContractId, Error, Session, TRANSFER_CONTRACT,
 };
 
 const POINT_LIMIT: u64 = 0x100000000;
@@ -147,12 +146,7 @@ pub fn execute(
         .call::<_, ()>(
             TRANSFER_CONTRACT,
             "refund",
-            &(
-                tx.payload().fee,
-                receipt.gas_spent,
-                EconomicMode::None,
-                None::<ContractId>,
-            ),
+            &(tx.payload().fee, receipt.gas_spent),
             u64::MAX,
         )
         .expect("Refunding must succeed");

contracts/transfer/src/lib.rs

@@ -69,11 +69,6 @@ unsafe fn num_notes(arg_len: u32) -> u32 {
     rusk_abi::wrap_call(arg_len, |_: ()| STATE.num_notes())
 }
 
-#[no_mangle]
-unsafe fn gas_price(arg_len: u32) -> u32 {
-    rusk_abi::wrap_call(arg_len, |_: ()| STATE.gas_price())
-}
-
 // "Feeder" queries
 
 #[no_mangle]
@@ -98,13 +93,10 @@ unsafe fn spend_and_execute(arg_len: u32) -> u32 {
 
 #[no_mangle]
 unsafe fn refund(arg_len: u32) -> u32 {
-    rusk_abi::wrap_call(
-        arg_len,
-        |(fee, gas_spent, economic_mode, contract_id)| {
-            assert_external_caller();
-            STATE.refund(fee, gas_spent, economic_mode, contract_id)
-        },
-    )
+    rusk_abi::wrap_call(arg_len, |(fee, gas_spent)| {
+        assert_external_caller();
+        STATE.refund(fee, gas_spent)
+    })
 }
 
 #[no_mangle]