goreleaser: correct archive naming by using default (#343)

.Binary was causing some archives to be called inbucket_client

Signed-off-by: James Hillyerd <james@hillyerd.com>

.goreleaser.yml

@@ -50,8 +50,6 @@ archives:
   - id: tarball
     format: tar.gz
     wrap_in_directory: true
-    name_template: '{{ .Binary }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{
-      .Arm }}{{ end }}'
     format_overrides:
       - goos: windows
         format: zip