fix: remove polluting google log library

[aeneasr]

For more context please see discussion https://discuss.dgraph.io/t/ristretto-0-1-0-pollutes-the-flags-namespace/14561

By reverting #263 not only is the number of dependencies this library has greatly reduced, but projects using this library will not unavoidably panic.

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This change is 

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[aeneasr]

Done by Go 1.17 gofmt

[floatdrop]

@manishrjain hey, can this be merged? glog pollutes our binary flags. Thanks!

[manishrjain]

Hey @floatdrop ,

I'm no longer associated with Dgraph Labs. I'm not maintaining repositories owned by dgraph-io. I've forks of these repos in outcaste-io. If you want to switch to that and send me the PR, I'll be happy to review it.

https://github.com/outcaste-io/ristretto

[aeneasr]

Is anyone maintaing this repo or is it essentially abandoned?

[karlmcguire]

@aeneasr Abandoned, check out https://github.com/outcaste-io/ristretto

[mangalaman93]

A similar PR is merged now #350