Remove (unreachable) call to clearAssign

[eileenmcnaughton]

Overview

Remove (unreachable) call to clearAssign

Before

We have backwards compatibility handling from before we hacked clearAssign() into smarty 2

After

poof

Technical Details

Comments

[civibot]

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[eileenmcnaughton]

I think the issue is that Smarty2 is still being loaded in the test somehow & calling the function internally & getting the deprecation - well I'll remove the noise