Don't run pcg lint on commit.
Don't run pcg lint on commit.

"In short, this tool is not, and will never be, trustworthy enough for its
suggestions to be enforced automatically, for example as part of a build
process."
https://github.com/golang/lint#purpose

"This mode is meant to be run manually for checks that trigger false
positive by design."
https://github.com/maruel/pre-commit-go/blob/master/CONFIGURATION.md#modes

BUG=

Review URL: https://codereview.chromium.org/1485593002

luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go