diff --git a/core/vm/logger.go b/core/vm/logger.go
deleted file mode 100644
index 269aed509c..0000000000
--- a/core/vm/logger.go
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright 2015 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 vm
-
-// EVMLogger is used to collect execution traces from an EVM transaction
-// execution. CaptureState is called for each step of the VM with the
-// current VM state.
-// Note that reference types are actual VM data structures; make copies
-// if you need to retain them beyond the current call.
-/*type EVMLogger interface {
-	// Transaction level
-	// Call simulations don't come with a valid signature. `from` field
-	// to be used for address of the caller.
-	CaptureTxStart(evm *EVM, tx *types.Transaction, from common.Address)
-	CaptureTxEnd(receipt *types.Receipt, err error)
-	// Top call frame
-	CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int)
-	// CaptureEnd is invoked when the processing of the top call ends.
-	// See docs for `CaptureExit` for info on the `reverted` parameter.
-	CaptureEnd(output []byte, gasUsed uint64, err error, reverted bool)
-	// Rest of call frames
-	CaptureEnter(typ OpCode, from common.Address, to common.Address, input []byte, gas uint64, value *big.Int)
-	// CaptureExit is invoked when the processing of a message ends.
-	// `revert` is true when there was an error during the execution.
-	// Exceptionally, before the homestead hardfork a contract creation that
-	// ran out of gas when attempting to persist the code to database did not
-	// count as a call failure and did not cause a revert of the call. This will
-	// be indicated by `reverted == false` and `err == ErrCodeStoreOutOfGas`.
-	CaptureExit(output []byte, gasUsed uint64, err error, reverted bool)
-	// Opcode level
-	CaptureState(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error)
-	CaptureFault(pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error)
-	CaptureKeccakPreimage(hash common.Hash, data []byte)
-	// Misc
-	OnGasChange(old, new uint64, reason GasChangeReason)
-}
-*/