Remove unused compare method

pkg/digest/compare.go

@@ -7,31 +7,6 @@ import (
 	"sync"
 )
 
-// Compare compares two Digest maps and returns the additions and modification
-// keys as arrays.
-func Compare(baseDigest, newDigest map[uint64]uint64) (additions []uint64, modifications []uint64) {
-	maxSize := len(newDigest)
-	additions = make([]uint64, maxSize)
-	modifications = make([]uint64, maxSize)
-
-	additionCounter := 0
-	modificationCounter := 0
-	for k, newVal := range newDigest {
-		if oldVal, present := baseDigest[k]; present {
-			if newVal != oldVal {
-				//Modifications
-				modifications[modificationCounter] = k
-				modificationCounter++
-			}
-		} else {
-			//Additions
-			additions[additionCounter] = k
-			additionCounter++
-		}
-	}
-	return additions[:additionCounter], modifications[:modificationCounter]
-}
-
 // Difference represents the additions and modifications
 // between the two Configs
 type Difference struct {

pkg/digest/compare_test.go

@@ -8,29 +8,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func TestCompare(t *testing.T) {
-	baseDigest := map[uint64]uint64{
-		10000106069522789940: 11608188164212916000,
-		10000305084889337335: 11796412213504516000,
-		10024909476616779194: 14500526491611670000,
-		1004896778135186857:  15778011848259830000,
-	}
-
-	newDigest := map[uint64]uint64{
-		10000106069522789940: 11608188164212916000,
-		10000305084889337335: 11796412213504516001,
-		10049141081086325814: 12259600610026582000,
-	}
-
-	additions, modifications := digest.Compare(baseDigest, newDigest)
-
-	expectedAdditions := []uint64{10049141081086325814}
-	expectedModifications := []uint64{10000305084889337335}
-
-	assert.Equal(t, expectedAdditions, additions)
-	assert.Equal(t, expectedModifications, modifications)
-}
-
 func TestDiff(t *testing.T) {
 	base := `1,col-1,col-2,col-3,one-value
 2,col-1,col-2,col-3,two-value