doc: Remove Cyrillic from unistr example

Peter Eisentraut <peter@eisentraut.org>

Commit: 287d2a97c1de07486e4525c8ad06258f04bd6268
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2021-03-31T06:20:35Z
Releases: 14.0
doc: Remove Cyrillic from unistr example

Not supported by PDF build right now, so let's do without it.

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doc/src/sgml/func.sgml modified +0 −4

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