Update issue templates

Author: hathach

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,7 +1,7 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-title: "[Bug]"
+title: ''
 labels: Bug
 assignees: ''
 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,7 +1,7 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-title: "[Feature]"
+title: ''
 labels: Feature
 assignees: ''
 

.github/ISSUE_TEMPLATE/questions-please-use-our-forum-support.md

@@ -2,7 +2,7 @@
 name: Questions please use our forum support
 about: Don't open issue, post your question at forums.adafruit.com
 title: ''
-labels: ''
+labels: wontfix
 assignees: ''
 
 ---