diff --git a/crates/contract/src/core/collateral.rs b/crates/contract/src/core/collateral.rs
index 22b8526..c60d5f9 100644
--- a/crates/contract/src/core/collateral.rs
+++ b/crates/contract/src/core/collateral.rs
@@ -22,7 +22,7 @@ impl LoanPoolMarkerCollateral {
             marker_address,
             marker_denom: marker_denom.into(),
             share_count: Uint128::new(share_count),
-            removed_permissions: removed_permissions.to_owned(),
+            removed_permissions,
         }
     }
 }
diff --git a/crates/contract/src/execute/settlement/add_loan_pool.rs b/crates/contract/src/execute/settlement/add_loan_pool.rs
index 78bbd1b..9bd2089 100644
--- a/crates/contract/src/execute/settlement/add_loan_pool.rs
+++ b/crates/contract/src/execute/settlement/add_loan_pool.rs
@@ -55,7 +55,7 @@ pub fn handle(
         .iter()
         .any(|event| event.ty == "loan_pool_added")
     {
-        response = response.add_attribute("added_by", info.sender.clone());
+        response = response.add_attribute("added_by", info.sender);
     }
     // Set response data to collaterals vector
     response = response.set_data(to_binary(&LoanPoolMarkers::new(collaterals))?);
diff --git a/crates/contract/src/execute/settlement/marker_loan_pool_validation.rs b/crates/contract/src/execute/settlement/marker_loan_pool_validation.rs
index b3f43a2..a3f1047 100644
--- a/crates/contract/src/execute/settlement/marker_loan_pool_validation.rs
+++ b/crates/contract/src/execute/settlement/marker_loan_pool_validation.rs
@@ -1,7 +1,7 @@
 use crate::core::error::ContractError;
 use crate::execute::settlement::extensions::ResultExtensions;
 use crate::util::provenance_utilities::{
-    get_single_marker_coin_holding, marker_has_admin, marker_has_permissions, query_total_supply,
+    get_single_marker_coin_holding, marker_has_admin, marker_has_permissions,
 };
 use cosmwasm_std::{Addr, Uint128};
 use provwasm_std::{Marker, MarkerAccess, MarkerStatus};
diff --git a/crates/contract/src/execute/settlement/withdraw_loan_pool.rs b/crates/contract/src/execute/settlement/withdraw_loan_pool.rs
index 32bc0a8..c5c02dd 100644
--- a/crates/contract/src/execute/settlement/withdraw_loan_pool.rs
+++ b/crates/contract/src/execute/settlement/withdraw_loan_pool.rs
@@ -1,14 +1,8 @@
-use cosmwasm_std::{
-    to_binary, Addr, CosmosMsg, DepsMut, Env, Event, MessageInfo, Response, Storage,
-};
-use provwasm_std::{
-    grant_marker_access, revoke_marker_access, AccessGrant, Marker, MarkerAccess, ProvenanceMsg,
-    ProvenanceQuerier, ProvenanceQuery,
-};
+use cosmwasm_std::{to_binary, Addr, DepsMut, Env, Event, MessageInfo, Response};
+use provwasm_std::{ProvenanceQuerier, ProvenanceQuery};
 
-use crate::core::collateral::{LoanPoolMarkerCollateral, LoanPoolMarkers, LoanPoolRemovalData};
+use crate::core::collateral::{LoanPoolMarkers, LoanPoolRemovalData};
 use crate::core::security::WithdrawLoanPools;
-use crate::execute::settlement::extensions::ResultExtensions;
 use crate::storage::loan_pool_collateral::{get, remove};
 use crate::util::provenance_utilities::release_marker_from_contract;
 use crate::{
@@ -48,8 +42,7 @@ pub fn handle(
                     .map_err(|_| ContractError::InvalidAddress {
                         message: pool.clone(),
                     })?;
-            let removal_data =
-                withdraw_marker_pool_collateral(&deps, &info, &env, address.to_owned())?;
+            let removal_data = withdraw_marker_pool_collateral(&deps, &env, address.to_owned())?;
             Ok((address, removal_data))
         })
         .collect::<Result<_, ContractError>>()?;
@@ -89,7 +82,6 @@ pub fn handle(
 
 fn withdraw_marker_pool_collateral(
     deps: &DepsMut<ProvenanceQuery>,
-    info: &MessageInfo,
     env: &Env,
     marker_address: Addr,
 ) -> Result<LoanPoolRemovalData, ContractError> {
@@ -98,7 +90,7 @@ fn withdraw_marker_pool_collateral(
         ProvenanceQuerier::new(&deps.querier).get_marker_by_address(marker_address.clone())?;
     let collateral = get(deps.storage, marker_address.clone())?;
     let messages = release_marker_from_contract(
-        &marker.denom,
+        marker.denom,
         &env.contract.address,
         &collateral.removed_permissions,
     )?;
diff --git a/crates/contract/src/storage/loan_pool_collateral.rs b/crates/contract/src/storage/loan_pool_collateral.rs
index 16424c5..19cfece 100644
--- a/crates/contract/src/storage/loan_pool_collateral.rs
+++ b/crates/contract/src/storage/loan_pool_collateral.rs
@@ -43,25 +43,6 @@ pub fn get_with_state(
     collateral
 }
 
-#[cfg(feature = "iterator")]
-pub fn get_all_collaterals(
-    store: &dyn Storage,
-) -> StdResult<Vec<(Addr, LoanPoolMarkerCollateral)>> {
-    let iter = COLLATERAL
-        .no_prefix_raw()
-        .range(store, None, None, Order::Ascending);
-
-    let items: Vec<(Addr, LoanPoolMarkerCollateral)> = iter
-        .map(|item| {
-            let (addr_bytes, collateral) = item.unwrap();
-            let addr = Addr::from(addr_bytes);
-            (addr, collateral)
-        })
-        .collect();
-
-    Ok(items)
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/crates/contract/src/util/provenance_utilities.rs b/crates/contract/src/util/provenance_utilities.rs
index fd33591..378cf22 100644
--- a/crates/contract/src/util/provenance_utilities.rs
+++ b/crates/contract/src/util/provenance_utilities.rs
@@ -1,12 +1,11 @@
 use crate::core::error::ContractError;
 use crate::execute::settlement::extensions::ResultExtensions;
 use cosmwasm_std::{
-    coin, Addr, BankQuery, Coin, CosmosMsg, Deps, DepsMut, Empty, QuerierWrapper, StdResult,
-    SupplyResponse, Uint128,
+    coin, Addr, BankQuery, Coin, CosmosMsg, DepsMut, StdResult, SupplyResponse, Uint128,
 };
 use provwasm_std::{
     grant_marker_access, revoke_marker_access, AccessGrant, Marker, MarkerAccess, ProvenanceMsg,
-    ProvenanceMsgParams, ProvenanceQuery,
+    ProvenanceQuery,
 };
 
 pub const NHASH: &str = "nhash";