removed some unused files

processor.go

@@ -1,7 +0,0 @@
-package extractor
-
-import "context"
-
-type Processor interface {
-	Process(ctx context.Context, src source) (source, error)
-}

source.go

@@ -1,29 +0,0 @@
-package extractor
-
-import (
-	"io"
-	"strings"
-)
-
-type Source interface {
-	URL() string
-	String() string
-	Reader() io.Reader
-}
-
-type source struct {
-	sourceUrl string
-	content   string
-}
-
-func (s source) URL() string {
-	return s.sourceUrl
-}
-
-func (s source) String() string {
-	return s.content
-}
-
-func (s source) Reader() io.Reader {
-	return strings.NewReader(s.content)
-}