build(node): cleanup production deps before installing dev/production
build(node): cleanup production deps before installing dev/production

Source-Author: Benjamin E. Coe <69440dae14aaa9fe2429b324bfce03449d09e1db@google.com>
Source-Date: Mon Oct 26 10:37:03 2020 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 89c849ba5013e45e8fb688b138f33c2ec6083dc5
Source-Link: https://github.com/googleapis/synthtool/commit/89c849ba5013e45e8fb688b138f33c2ec6083dc5

googleapis/google-cloud-node,googleapis/google-cloud-node,googleapis/google-cloud-node,googleapis/google-cloud-node