[ci skip] cleanup stale files, update github templates

.github/ISSUE_TEMPLATE.md

@@ -1,46 +1,17 @@
-<!--
 
-This issue queue is primarily intended for tracking features, bugs and work items associated with
-the Datadog Agent open-source project.
+**Output of the [info page](https://docs.datadoghq.com/agent/faq/agent-commands/#agent-status-and-information)**
 
-Prior to submitting an issue please review the following:
-
-- [ ] [Troubleshooting](https://datadog.zendesk.com/hc/en-us/sections/200766955-Troubleshooting) section of our [Knowledge base](https://datadog.zendesk.com/hc/en-us).
-- [ ] Finally, you can open a Github issue respecting this [title convention](https://github.com/DataDog/dd-agent/blob/master/CONTRIBUTING.md#commits-titles) (it helps us triage).
-
-NOTE: we provide no official support for any integrations in integrations-extras.
-These are community supported.
-
-If you are reporting a new issue, make sure that we do not have any duplicates
-already open. You can ensure this by searching the issue list for this
-repository. If there is a duplicate, please close your issue and add a comment
-to the existing issue instead.
-
-If you suspect your issue is a bug, please edit your issue description to
-include the BUG REPORT INFORMATION shown below.
-
----------------------------------------------------
-BUG REPORT INFORMATION
----------------------------------------------------
-Use the commands below to provide key information from your environment:
-You do NOT have to include this information if this is a FEATURE REQUEST
--->
-
-**Output of the [info page](https://help.datadoghq.com/hc/en-us/articles/203764635-Agent-Status-and-Information) **
-
-```
+```text
 (paste your output here)
 ```
 
 **Additional environment details (Operating System, Cloud provider, etc):**
 
-
 **Steps to reproduce the issue:**
 1.
 2.
 3.
 
-
 **Describe the results you received:**
 
 

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,3 @@
-<!-- *Note: Please remember to review the Datadog [Contribution Guidelines](https://github.com/DataDog/dd-agent/blob/master/CONTRIBUTING.md)
-if you have not yet done so.* -->
-
 ### What does this PR do?
 
 A brief description of the change being made with this pull request.
@@ -9,16 +6,12 @@ A brief description of the change being made with this pull request.
 
 What inspired you to submit this pull request?
 
-### Testing Guidelines
-
-An overview on [testing](https://github.com/DataDog/dd-agent/blob/master/tests/README.md)
-is available in our contribution guidelines.
-
-### Versioning
+### Review checklist
 
-- [ ] Bumped the version check in `manifest.json`
-- [ ] Updated `CHANGELOG.md`
-- [ ] If PR impacts documentation, docs team has been notified or [an issue has been opened on the documentation repository](https://github.com/DataDog/documentation/issues/new)
+- [ ] PR has a [meaningful title](https://github.com/DataDog/integrations-core/blob/master/CONTRIBUTING.md#pull-request-title) or PR has the `no-changelog` label attached
+- [ ] Feature or bugfix has tests
+- [ ] Git history is clean
+- [ ] If PR impacts documentation, docs team has been notified or an issue has been opened on the [documentation repo](https://github.com/DataDog/documentation/issues/new)
 
 ### Additional Notes
 

CONTRIBUTING.md

@@ -0,0 +1,9 @@
+# Contributing
+
+First of all, thanks for contributing!
+
+In the effort of keeping the development experience consistent between `integrations-extras`
+and `integrations-core`, the contribution guidelines are the same for both the
+projects and are outlined in [this document][0].
+
+[0]: https://github.com/DataDog/integrations-core/blob/master/CONTRIBUTING.md