Fix switching to previous weapon not working correctly

[naydef]

Fixes:

• Sometimes weapon switching doesn't happen (use %s doesn't always permit that)
• Switching from minigun while revved up causing slowdown

Code calls SetEntPropEnt(client, Prop_Send, "m_hActiveWeapon", other); all the time, since TF2Util_SetPlayerActiveWeapon may not switch weapons sometimes, so it acts as a fallback. At least TF2Util_SetPlayerActiveWeapon always calls the necessary weapon switching hooks (so I guess it works similar to use %s, without needing classnames and other overheads applied).

This should fix https://github.com/Batfoxkid/Freak-Fortress-2-Rewrite/issues/141