chore: Clean up .github files.

.github/CONTRIBUTING.md

@@ -1,3 +0,0 @@
-# Example Contributing Guidelines
-
-This is an example of GitHub's contributing guidelines file. Check out GitHub's [CONTRIBUTING.md help center article](https://help.github.com/articles/setting-guidelines-for-repository-contributors/) for more information.

.github/ISSUE_TEMPLATE.md

@@ -1,11 +0,0 @@
-* **I'm submitting a ...**
-[ ] bug report
-[ ] feature request
-[ ] question about the decisions made in the repository
-[ ] question about how to use this project
-
-* **Summary**
-
-
-
-* **Other information** (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. StackOverflow, personal fork, etc.)

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,13 +0,0 @@
-* **What kind of change does this PR introduce?** (Bug fix, feature, docs update, ...)
-
-
-
-* **What is the current behavior?** (You can also link to an open issue here)
-
-
-
-* **What is the new behavior (if this is a feature change)?**
-
-
-
-* **Other information**: