MNT: Issue templates should not auto-add labels

Author: kernc

.github/ISSUE_TEMPLATE/2-enh.yml

@@ -1,7 +1,6 @@
 name: Enhancement proposal
 description: Describe the enhancement you'd like to see
 title: "Short title loaded with keywords"
-labels: ["enhancement"]
 body:
   - type: markdown
     attributes: