chore: remove new instance issue template (moved to documentation repo)

.github/ISSUE_TEMPLATE/new_instance.yml

@@ -1,54 +0,0 @@
-name: New Instance
-title: "New instance: "
-description: Request to add a new instance to the official list
-labels: ["new-instance"]
-body:
-  - type: input
-    id: api-url
-    attributes:
-      label: Api Url
-      description: The backend url of the instance.
-      placeholder: https://pipedapi.kavin.rocks
-    validations:
-      required: true
-      
-  - type: input
-    id: location
-    attributes:
-      label: Instance location
-      description: The country the instance is located in.
-      placeholder: Germany, 🇩🇪
-    validations:
-      required: true
-      
-  - type: checkboxes
-    id: cdn
-    attributes:
-      label: CDN (not required)
-      description: Whether the instances uses a [CDN](https://www.cloudflare.com/learning/cdn/what-is-a-cdn/).
-      options:
-        - label: My instance does use a CDN.
-
-  - type: checkboxes
-    id: approval
-    attributes:
-      label: Instance owner
-      description: If you're not the owner of the instance, you must leave a proof that the instance owner agreed with adding the instance to the list of public instances.
-      options:
-        - label: I am the owner of the instance.
-
-  - type: textarea
-    id: other
-    attributes:
-      label: Other details
-
-  - type: markdown
-    attributes:
-      value: |
-        Thank you for hosting a public Piped instance!
-    
-  - type: markdown
-    attributes:
-      value: |
-        If you have any further questions, please join one of the communities that are linked in the README.
-