Remove title prefix (we already have labels for that)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,7 +1,7 @@
 ---
 name: Bug Report
 about: Report a bug.
-title: "[Bug] "
+title: ""
 labels: bug
 assignees: ''
 

.github/ISSUE_TEMPLATE/syntax_request.md

@@ -1,7 +1,7 @@
 ---
 name: Syntax Request
 about: Request adding a new syntax to bat.
-title: "[Syntax Request] "
+title: ""
 labels: new-syntax
 assignees: ''