Remove colors from bower output when updating Polymer
Remove colors from bower output when updating Polymer

Was just jacking up my terminal rather than helping

R=michaelpg@chromium.org
BUG=none
NOTRY=true

Review URL: https://codereview.chromium.org/1505883002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#363589}

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