Disable the interfacer lint

DirectXMan12 · DirectXMan12 · commit 5de9250bb724 · 2020-10-16T15:22:33.000-07:00
It's overzealous and doesn't understand that interfaces have semantic
meaning (and has just bad results on occaison).
diff --git a/.golangci.yml b/.golangci.yml
@@ -28,7 +28,6 @@ linters:
   - unparam
   - ineffassign
   - nakedret
-  - interfacer
   - gocyclo
   - lll
   - dupl
