[Integrated] RFR: proxy: remove dead code

[Erik Helin]

Changeset: 29691254
Author:    Erik Helin <ehelin at openjdk.org>
Date:      2020-04-17 11:01:09 +0000
URL:       https://git.openjdk.java.net/skara/commit/29691254

proxy: remove dead code

Reviewed-by: rwestberg

! cli/src/main/java/org/openjdk/skara/cli/GitProxy.java