Superfluous "WARNING" in alert

[ocket8888]

I'm submitting a ...

• bug report

Traffic Control components affected ...

• Traffic Ops

Current behavior:

Adding an SSL certificate for a Delivery Service with a potentially bad cert chain gives back a warning alert like:

{
	"alerts": [{
		"text": "WARNING: SSL keys were successfully added for '\''demo1'\'', but the input certificate may be invalid (certificate verification produced a different chain)",
		"level":"warning"
	}]
}

Expected behavior:

The alert is warning-level, so it doesn't need the WARNING: prefix; alert should look like:

{
	"alerts": [{
		"text": "SSL keys were successfully added for '\''demo1'\'', but the input certificate may be invalid (certificate verification produced a different chain)",
		"level":"warning"
	}]
}

Minimal reproduction of the problem with instructions:

You can actually just check the logs for the trafficops service in CDN-in-a-Box, it occurs in there when uploading certs for the demo1 Delivery Service.