[xml] Patches to fix two gcc warnings - unused variable and undefined return value

[Nikolay Sivov <bunglehead gmail com>]

Hi again.

These patches are about to fix two warnings reported for current git build.

P.S. don't know the policy of this list regarding mail per patch granularity,
so sent two patches in one mail.

Attachment: 0001-Remove-unused-variable.diff
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Attachment: 0002-Get-rid-of-useless-variable-avoid-uninitialized-retu.diff
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