small cleanups

accounts/abi/bind/base.go

@@ -403,11 +403,7 @@ func (c *BoundContract) estimateGasLimit(opts *TransactOpts, contract *common.Ad
 		Value:     value,
 		Data:      input,
 	}
-	res, err := c.transactor.EstimateGas(ensureContext(opts.Context), msg)
-	if err != nil {
-		return 0, err
-	}
-	return res, nil
+	return c.transactor.EstimateGas(ensureContext(opts.Context), msg)
 }
 
 func (c *BoundContract) getNonce(opts *TransactOpts) (uint64, error) {

accounts/abi/bind/bind.go

@@ -393,7 +393,6 @@ func bind(types []string, abis []string, bytecodes []string, fsigs []map[string]
 			}
 		}
 	}
-
 	// Check if that type has already been identified as a library
 	for i := 0; i < len(types); i++ {
 		_, ok := isLib[types[i]]

accounts/abi/bind/lib.go

@@ -1,28 +0,0 @@
-// Copyright 2023 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package bind
-
-import (
-	"github.com/ethereum/go-ethereum/common"
-)
-
-// ContractInstance provides means to interact with
-// a deployed contract.
-type ContractInstance interface {
-	Address() common.Address
-	Backend() ContractBackend
-}