remove unused hasLabel import in unassign command (#1258)

Signed-off-by: Davin <dev.davicheanin@gmail.com>

Author: davin-core

.github/scripts/commands/unassign.js

@@ -10,7 +10,6 @@ const {
   LABELS,
   ISSUE_STATE,
   getLogger,
-  hasLabel,
   addLabels,
   removeLabel,
   removeAssignees,