removes unused code

internal/docker/types.go

@@ -3,7 +3,6 @@ package docker
 import (
 	"fmt"
 	"math"
-	"strings"
 	"time"
 
 	"github.com/amir20/dozzle/internal/utils"
@@ -45,21 +44,6 @@ type ContainerEvent struct {
 
 type ContainerFilter map[string][]string
 
-func NewContainerFilter(values map[string]string) (ContainerFilter, error) {
-	containerFilter := make(ContainerFilter)
-	for _, filter := range values {
-		pos := strings.Index(filter, "=")
-		if pos == -1 {
-			return nil, fmt.Errorf("invalid filter: %s. each filter should be of the form key=value", filter)
-		}
-		key := filter[:pos]
-		val := filter[pos+1:]
-		containerFilter[key] = append(containerFilter[key], val)
-	}
-
-	return containerFilter, nil
-}
-
 func (f ContainerFilter) asArgs() filters.Args {
 	filterArgs := filters.NewArgs()
 	for key, values := range f {