I thought in 4.3.1 it was
Skin1/customer/bottom.tpl
And then within bottom.tpl is >
<div class="box">
<div class="subbox">
<div class="left">
{include file="main/prnotice.tpl"}</div>
<div class="right">{include file="copyright.tpl"}</div>
</div>
</div>
The highlighted red being the template, either
1.comment it out
2. Put something else within main/prnotice.tpl
3. Remove all together.