delete unused codecov.yml

codecov.yml

@@ -1,42 +0,0 @@
-codecov:
-  branch: main
-  bot: null
-
-coverage:
-  precision: 2
-  round: down
-  range: "60...100"
-
-  notify:
-    irc:
-      default:
-        server: chat.freenode.net
-        channel: '##python-code-quality'
-        branches: main
-        threshold: 2
-        message: null
-
-  status:
-    project:
-      default:
-        target: auto
-        threshold: null
-        branches: null
-
-    patch:
-      default:
-        target: auto
-        branches: null
-
-    changes:
-      default:
-        branches: null
-
-  ignore: null
-  fixes:
-    - .tox
-
-comment:
-  layout: "header, diff, changes, sunburst, uncovered, tree"
-  branches: null
-  behavior: default