Update issue templates

Author: hyperpolymath

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,12 +1,8 @@
-<!--
-SPDX-License-Identifier: MPL-2.0
-Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
--->
 ---
 name: Bug report
 about: Create a report to help us improve
-title: "[Bug]: "
-labels: 'bug, priority: unset, triage'
+title: ''
+labels: ''
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/custom.md

@@ -1,7 +1,3 @@
-<!--
-SPDX-License-Identifier: MPL-2.0
-Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
--->
 ---
 name: Custom issue template
 about: Describe this issue template's purpose here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,12 +1,8 @@
-<!--
-SPDX-License-Identifier: MPL-2.0
-Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
--->
 ---
 name: Feature request
 about: Suggest an idea for this project
 title: ''
-labels: 'enhancement, priority: unset, triage'
+labels: ''
 assignees: ''
 
 ---