helpers: Remove unused code

helpers/content.go

@@ -37,9 +37,6 @@ import (
 	"github.com/gohugoio/hugo/config"
 )
 
-// SummaryDivider denotes where content summarization should end. The default is "<!--more-->".
-var SummaryDivider = []byte("<!--more-->")
-
 var (
 	openingPTag        = []byte("<p>")
 	closingPTag        = []byte("</p>")

helpers/general.go

@@ -258,12 +258,6 @@ func compareStringSlices(a, b []string) bool {
 	return true
 }
 
-// LogPrinter is the common interface of the JWWs loggers.
-type LogPrinter interface {
-	// Println is the only common method that works in all of JWWs loggers.
-	Println(a ...interface{})
-}
-
 // DistinctLogger ignores duplicate log statements.
 type DistinctLogger struct {
 	loggers.Logger

helpers/path.go

@@ -35,9 +35,6 @@ import (
 	"github.com/spf13/afero"
 )
 
-// ErrThemeUndefined is returned when a theme has not be defined by the user.
-var ErrThemeUndefined = errors.New("no theme set")
-
 // MakePath takes a string with any characters and replace it
 // so the string could be used in a path.
 // It does so by creating a Unicode-sanitized string, with the spaces replaced,
@@ -456,16 +453,6 @@ func IsEmpty(path string, fs afero.Fs) (bool, error) {
 	return afero.IsEmpty(fs, path)
 }
 
-// FileContains checks if a file contains a specified string.
-func FileContains(filename string, subslice []byte, fs afero.Fs) (bool, error) {
-	return afero.FileContainsBytes(fs, filename, subslice)
-}
-
-// FileContainsAny checks if a file contains any of the specified strings.
-func FileContainsAny(filename string, subslices [][]byte, fs afero.Fs) (bool, error) {
-	return afero.FileContainsAnyBytes(fs, filename, subslices)
-}
-
 // Exists checks if a file or directory exists.
 func Exists(path string, fs afero.Fs) (bool, error) {
 	return afero.Exists(fs, path)