Correctly copy paste the right glow fade code for the Demoman's charge

I noticed this when digging through the crit proxy for something else, and I figured I could submit a fix for it.

Implementation

The Demoman's charge glow is supposed to fade in and out, however it only fades out when cancelled through a melee attack. This can be fixed by simply copypasting the code from the melee attack fade out to the other part of the function

Screenshots

https://twitter.com/stick_twt/status/1472464099845963777

Checklist

[x] No other PRs implement this idea.
[x] This PR does not introduce any regressions.
[x] I certify that this PR is my own entirely original work, or I have permission from and have attributed the relevant authors.
[x] I have agreed to and signed this project's Contributor License Agreement.
[ ] This PR only contains changes to the engine and/or core game framework
[x] This PR targets the community branch.

[ ] This change has been filed as an issue.
[x] No other PRs address this.
[x] This PR is as minimal as possible.
[x] This PR does not introduce any regressions.
[ ] This PR has been built and locally tested on at least one platform.
[ ] This PR has been tested on all platforms, on both a dedicated server and on a listen server.

Testing Checklist

	Client	Server	Version
Windows	N/A	N/A	N/A
Linux	N/A	N/A	N/A
Mac OS	N/A	N/A	N/A

Caveats

Probably nothing, its barely noticeable as is

Alternatives

Could probably reformat the maths to make it last slightly longer, but this is probably what Valve intended

mastercomfig / tf2-patches