Get rid of duplicate const declaration specifier warning in tst-resolv-qtypes.c.

[Andreas Schwab]

On Jan 31 2017, Stefan Liebler <stli@linux.vnet.ibm.com> wrote:

>  static const const char *domain = "www.example.com";

domain should be const.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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