[ENG-613]: Linting fixes (#32)

Co-authored-by: Aleksandr Bezobchuk <aleks.bezobchuk@gmail.com>

x/auction/keeper/auction.go

@@ -30,7 +30,7 @@ func (k Keeper) ValidateAuctionMsg(ctx sdk.Context, bidder sdk.AccAddress, bid,
 	}
 
 	if protectionEnabled {
-		if err := k.ValidateAuctionBundle(ctx, bidder, transactions); err != nil {
+		if err := k.ValidateAuctionBundle(bidder, transactions); err != nil {
 			return err
 		}
 	}
@@ -88,7 +88,7 @@ func (k Keeper) ValidateAuctionBid(ctx sdk.Context, bidder sdk.AccAddress, bid,
 //  2. valid: [tx1, tx2, tx3, tx4] where tx1 - tx4 are signed by the bidder.
 //  3. invalid: [tx1, tx2, tx3] where tx1 and tx3 are signed by the bidder and tx2 is signed by some other signer. (possible sandwich attack)
 //  4. invalid: [tx1, tx2, tx3] where tx1 is signed by the bidder, and tx2 - tx3 are signed by some other signer. (possible front-running attack)
-func (k Keeper) ValidateAuctionBundle(ctx sdk.Context, bidder sdk.AccAddress, transactions []sdk.Tx) error {
+func (k Keeper) ValidateAuctionBundle(bidder sdk.AccAddress, transactions []sdk.Tx) error {
 	if len(transactions) <= 1 {
 		return nil
 	}

x/auction/keeper/auction_test.go

@@ -290,7 +290,7 @@ func (suite *KeeperTestSuite) TestValidateBundle() {
 			}
 
 			// Validate the bundle
-			err := suite.auctionKeeper.ValidateAuctionBundle(suite.ctx, bidder.Address, bundle)
+			err := suite.auctionKeeper.ValidateAuctionBundle(bidder.Address, bundle)
 			if tc.pass {
 				suite.Require().NoError(err)
 			} else {

x/auction/keeper/grpc_query.go

@@ -20,7 +20,7 @@ func NewQueryServer(keeper Keeper) *QueryServer {
 }
 
 // Params queries all parameters of the auction module.
-func (q QueryServer) Params(c context.Context, req *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
+func (q QueryServer) Params(c context.Context, _ *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
 	ctx := sdk.UnwrapSDKContext(c)
 
 	params, err := q.keeper.GetParams(ctx)

x/auction/module.go

@@ -52,7 +52,7 @@ func (AppModuleBasic) DefaultGenesis(cdc codec.JSONCodec) json.RawMessage {
 }
 
 // ValidateGenesis performs genesis state validation for the auction module.
-func (AppModuleBasic) ValidateGenesis(cdc codec.JSONCodec, config client.TxEncodingConfig, bz json.RawMessage) error {
+func (AppModuleBasic) ValidateGenesis(cdc codec.JSONCodec, _ client.TxEncodingConfig, bz json.RawMessage) error {
 	var genState types.GenesisState
 	if err := cdc.UnmarshalJSON(bz, &genState); err != nil {
 		return fmt.Errorf("failed to unmarshal %s genesis state: %w", types.ModuleName, err)
@@ -97,12 +97,12 @@ func (AppModule) ConsensusVersion() uint64 { return ConsensusVersion }
 
 // RegisterServices registers a the gRPC Query and Msg services for the x/auction
 // module.
-func (am AppModule) RegisterServices(cfg module.Configurator) {
+func (am AppModule) RegisterServices(_ module.Configurator) {
 	// TODO: Define the gRPC querier service and register it with the auction module configurator
 	// TODO: Define the gRPC Msg service and register it with the auction module configurator
 }
 
-func (a AppModuleBasic) RegisterRESTRoutes(ctx client.Context, r *mux.Router) {}
+func (a AppModuleBasic) RegisterRESTRoutes(_ client.Context, _ *mux.Router) {}
 
 // RegisterInvariants registers the invariants of the module. If an invariant
 // deviates from its predicted value, the InvariantRegistry triggers appropriate

x/auction/types/genesis.go

@@ -16,9 +16,5 @@ func DefaultGenesisState() *GenesisState {
 
 // Validate performs basic validation of the auction module genesis state.
 func (gs GenesisState) Validate() error {
-	if err := gs.Params.Validate(); err != nil {
-		return err
-	}
-
-	return nil
+	return gs.Params.Validate()
 }

x/auction/types/msgs.go

@@ -30,11 +30,7 @@ func (m MsgUpdateParams) ValidateBasic() error {
 		return errors.Wrap(err, "invalid authority address")
 	}
 
-	if err := m.Params.Validate(); err != nil {
-		return err
-	}
-
-	return nil
+	return m.Params.Validate()
 }
 
 // GetSignBytes implements the LegacyMsg interface.

x/auction/types/params.go

@@ -67,11 +67,7 @@ func (p Params) Validate() error {
 		return fmt.Errorf("invalid minimum bid increment (%s)", err)
 	}
 
-	if err := validateProposerFee(p.ProposerFee); err != nil {
-		return err
-	}
-
-	return nil
+	return validateProposerFee(p.ProposerFee)
 }
 
 func validateProposerFee(v sdk.Dec) error {