Remove duplicate codecov config

Author: betatim

.codecov.yml

@@ -1,10 +1,10 @@
-# show coverage in CI status, not as a comment. Never consider it a failure.
+# show coverage in CI status, not as a comment. 
 comment: off
 coverage:
   status:
     project:
       default:
-        target: 0%
+        target: 20%
     patch:
       default:
-        target: 0%
+        target: auto