Footsteps without view bobbing (#5645)

Footsteps without view bobbing (#5645)

* Remove redundant view_bobbing setting

Also fixes bug where disabling view_bobbing disables footstep sounds.

* Removes redundant view_bobbing setting

Setting view_bobbing amount to 0 is now the only way to
turn view_bobbing on and off. Also fixed a bug where footstep
sounds would not play when view_bobbing was disabled.