Respectful code cleanup No.2

[markmandel]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:

/kind breaking
/kind bug

/kind cleanup

/kind documentation
/kind feature
/kind hotfix

What this PR does / Why we need it:

Switching out some more verbiage to be more inclusive.

Which issue(s) this PR fixes:

Special notes for your reviewer:

N/A

[agones-bot]

Build Succeeded 👏

Build Id: e0f6da28-0ddc-4b7b-b2ed-d01989b3019a

The following development artifacts have been built, and will exist for the next 30 days:

• image: gcr.io/agones-images/agones-controller:1.15.0-a27c9df
• image: gcr.io/agones-images/agones-ping:1.15.0-a27c9df
• Linux C++ SDK (build): agonessdk-1.15.0-a27c9df-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.15.0-a27c9df.zip

A preview of the website (the last 30 builds are retained):

• https://a27c9df-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/2109/head:pr_2109 && git checkout pr_2109
• helm install ./install/helm/agones --namespace agones-system --name agones --set agones.image.tag=1.15.0-a27c9df

[google-oss-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: markmandel, roberthbailey

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• OWNERS [markmandel,roberthbailey]

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