Remove use of triage label (#180)

Tags on the repo should be a way to classify an item instead of denoting
workflow or status of the item. Remove the addition of the triage label
on bug and feature issues.

Related to apple/container#262

Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>

Author: katiewasnothere

.github/ISSUE_TEMPLATE/01-bug.yml

@@ -1,7 +1,6 @@
 name: Bug report
 description: File a bug report.
 title: "[Bug]: "
-labels: ["triage"]
 type: "Bug"
 body:
   - type: markdown

.github/ISSUE_TEMPLATE/02-feature.yml

@@ -1,7 +1,6 @@
 name: Feature or enhancement request
 description: File a request for a feature or enhancement
 title: "[Request]: "
-labels: ["triage"]
 type: "Feature"
 body:
   - type: markdown