cli: remove deprecated Errors type

The Errors type was deprecated in d3bafa5f3e,
which has been included in the 27.4.0 release.

This patch removes the type, as there are no external consumers.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/error.go

@@ -2,28 +2,8 @@ package cli
 
 import (
 	"strconv"
-	"strings"
 )
 
-// Errors is a list of errors.
-// Useful in a loop if you don't want to return the error right away and you want to display after the loop,
-// all the errors that happened during the loop.
-//
-// Deprecated: use [errors.Join] instead; will be removed in the next release.
-type Errors []error
-
-func (errList Errors) Error() string {
-	if len(errList) < 1 {
-		return ""
-	}
-
-	out := make([]string, len(errList))
-	for i := range errList {
-		out[i] = errList[i].Error()
-	}
-	return strings.Join(out, ", ")
-}
-
 // StatusError reports an unsuccessful exit by a command.
 type StatusError struct {
 	Status     string