remove old unused code

internal/utils/strutils/string.go

@@ -1,7 +1,6 @@
 package strutils
 
 import (
-	"net/url"
 	"strings"
 
 	"golang.org/x/text/cases"
@@ -22,14 +21,6 @@ func Title(s string) string {
 	return cases.Title(language.AmericanEnglish).String(s)
 }
 
-func ExtractPort(fullURL string) (int, error) {
-	url, err := url.Parse(fullURL)
-	if err != nil {
-		return 0, err
-	}
-	return Atoi(url.Port())
-}
-
 func ToLowerNoSnake(s string) string {
 	return strings.ToLower(strings.ReplaceAll(s, "_", ""))
 }