Removing default title in issue templates [skip ci]

The issue template pre-fills a starting title, but people aren't changing it and that results in littering the issues with '[BUG] <title>' -- removing forces logger to set an appropriate title.

Author: timheuer

.github/ISSUE_TEMPLATE/bug.yml

@@ -1,6 +1,5 @@
 name: 🐞 Bug
 description: File a bug/issue
-title: "[BUG] <title>"
 labels: [bug]
 body:
 - type: textarea

.github/ISSUE_TEMPLATE/feature.yml

@@ -1,6 +1,5 @@
 name: 💡 Feature Request
 description: Suggest a feature
-title: "[SUGGESTION] <title>"
 labels: [enhancement]
 body:
 - type: textarea