undo another chaange that isnt needed anymore

core/server/api_container/server/startosis_engine/kurtosis_starlark_framework/builtin_argument/validators.go

@@ -5,7 +5,6 @@ import (
 	"github.com/kurtosis-tech/kurtosis/container-engine-lib/lib/backend_interface/objects/service"
 	"github.com/kurtosis-tech/kurtosis/core/server/api_container/server/startosis_engine/startosis_errors"
 	"go.starlark.net/starlark"
-	"net/mail"
 	"reflect"
 	"regexp"
 	"strings"
@@ -23,17 +22,6 @@ func NonEmptyString(value starlark.Value, argNameForLogging string) *startosis_e
 	return nil
 }
 
-func ValidEmailString(value starlark.Value, argNameForLogging string) *startosis_errors.InterpretationError {
-	valueStr, ok := value.(starlark.String)
-	if !ok {
-		return startosis_errors.NewInterpretationError("Value for '%s' was expected to be a starlark.String but was '%s'", argNameForLogging, reflect.TypeOf(value))
-	}
-	if _, err := mail.ParseAddress(valueStr.GoString()); err != nil {
-		return startosis_errors.WrapWithInterpretationError(err, "An error occurred while validating email address '%v' passed via attr '%v'", valueStr, argNameForLogging)
-	}
-	return nil
-}
-
 func StringListWithNotEmptyValues(value starlark.Value, argNameForLogging string) *startosis_errors.InterpretationError {
 	starlarkList, ok := value.(*starlark.List)
 	if !ok {