1 files changed, 0 insertions, 47 deletions
diff --git a/pow/ethash_algo_go1.7.go b/pow/ethash_algo_go1.7.go
deleted file mode 100644
index ce05b3bb0..000000000
--- a/pow/ethash_algo_go1.7.go
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright 2017 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/>.
-
-// +build !go1.8
-
-package pow
-
-// cacheSize calculates and returns the size of the ethash verification cache that
-// belongs to a certain block number. The cache size grows linearly, however, we
-// always take the highest prime below the linearly growing threshold in order to
-// reduce the risk of accidental regularities leading to cyclic behavior.
-func cacheSize(block uint64) uint64 {
-	// If we have a pre-generated value, use that
-	epoch := int(block / epochLength)
-	if epoch < len(cacheSizes) {
-		return cacheSizes[epoch]
-	}
-	// We don't have a way to verify primes fast before Go 1.8
-	panic("fast prime testing unsupported in Go < 1.8")
-}
-
-// datasetSize calculates and returns the size of the ethash mining dataset that
-// belongs to a certain block number. The dataset size grows linearly, however, we
-// always take the highest prime below the linearly growing threshold in order to
-// reduce the risk of accidental regularities leading to cyclic behavior.
-func datasetSize(block uint64) uint64 {
-	// If we have a pre-generated value, use that
-	epoch := int(block / epochLength)
-	if epoch < len(datasetSizes) {
-		return datasetSizes[epoch]
-	}
-	// We don't have a way to verify primes fast before Go 1.8
-	panic("fast prime testing unsupported in Go < 1.8")
-}