pgsql: doc: Remove buggy ICU collation from documentation

doc: Remove buggy ICU collation from documentation

We have had multiple reports that point to the
'@colReorder=latn-digit' collation customization being buggy.  We have
reported this to ICU and are waiting for a fix.  In the meantime,
remove references to this from the documentation and replace it by
another reordering example.  Apparently, many users have been picking
up this example specifically from the documentation.

Author: Jehan-Guillaume de Rorthais <jgdr@dalibo.com>
Discussion: https://www.postgresql.org/message-id/flat/153201618542.1404.3611626898935613264%40wrigleys.postgresql.org

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/697c8e620443ca15b834f46e66d682dc9ce5c191

Modified Files
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doc/src/sgml/charset.sgml | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)