switch gofmt to default simplify=true

.golangci.yaml

@@ -16,12 +16,6 @@ linters:
     - gofmt
 linters-settings:
   gofmt:
-    # Simplify code: gofmt with `-s` option.
-    # Default: true
-    simplify: false
-    # Apply the rewrite rules to the source before reformatting.
-    # https://pkg.go.dev/cmd/gofmt
-    # Default: []
     rewrite-rules:
       #- pattern: 'interface{}'
       #  replacement: 'any'