fdo#63690 - replace RTL_CONTEXT_ macros with SAL_INFO

this is a continuation of the above bug, removing SAL_INFO's
that only mark function entry.

Change-Id: Idb0f72481415594e3f8b7a11ad6e4b8835f6fca0
Reviewed-on: https://gerrit.libreoffice.org/9343
Tested-by: Thomas Arnhold <thomas@arnhold.org>
Reviewed-by: Thomas Arnhold <thomas@arnhold.org>