Emitter: Remove an illogical nomem raise from eval_call.
Emitter: Remove an illogical nomem raise from eval_call.

I think this was accidentally leftover when I was trying to debug something in
oo_call. This is either the wrong error to raise, or completely useless/will
never happen. If it's the former, I'll find it again and write the proper
thing this time (I hope).

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