Drop older issue template now that the new (multi) templates are in use.

.github/ISSUE_TEMPLATE.md

@@ -1,29 +0,0 @@
-#### Submission type
-
-  - [ ] Bug report
-  - [ ] Feature Request
-
-
-#### Info regarding which version of Calamares is used, which Distribution
-
-> …
-
-#### Provide information on how the disks are set up, in detail, with full logs of commands issued 
-
-> …
-
-#### What do you expect to have happen when Calamares installs?
-
-> …
-
-#### Describe the issue you encountered
-
-> …
-
-#### Steps to reproduce the problem
-
-> …
-
-#### Include the installation.log (usually ~/Calamares/Calamares/Calamares.log, of the user Calamares runs as):
-
-> …