fix: delete discussion

.github/ISSUE_TEMPLATE/discussion.yml

@@ -1,17 +0,0 @@
-name: 项目讨论
-description: discussion
-title: "[Discussion]: "
-labels: ["discussion"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        [BUG](https://github.com/jxxghp/MoviePilot/issues/new?assignees=&labels=bug&template=bug_report.yml&title=%5BBUG%5D%3A) 与 [Feature Request](https://github.com/jxxghp/MoviePilot/issues/new?assignees=&labels=feature+request&template=feature_request.yml&title=%5BFeature+Request%5D%3A+) 请转到对应位置提交。
-  - type: textarea
-    id: discussion
-    attributes:
-      label: 项目讨论
-      description: 请详细描述需要讨论的内容。
-      placeholder: "项目讨论"
-    validations:
-      required: true