Maint: remove assignees in Github issues

.github/ISSUE_TEMPLATE/bug.md

@@ -3,7 +3,6 @@ name: Bug
 about: Report a bug
 title: 'Bug: FILL THIS TEXT!'
 labels: ":bug: bug"
-assignees: qdm12
 
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.github/ISSUE_TEMPLATE/feature_request.md

@@ -3,7 +3,6 @@ name: Feature request
 about: Suggest a feature to add to this project
 title: 'Feature request: FILL THIS TEXT!'
 labels: ":bulb: feature request"
-assignees: qdm12
 
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.github/ISSUE_TEMPLATE/help.md

@@ -3,7 +3,6 @@ name: Help
 about: Ask for help
 title: 'Help: FILL THIS TEXT!'
 labels: ":pray: help wanted"
-assignees:
 
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