[PATCH] wsdapi: Fix some memory leaks (Valgrind).

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=45906

Your paranoid android.


=== debian9 (build log) ===

collect2: error: ld returned 1 exit status
Makefile:434: recipe for target 'wsdapi.dll.so' failed
Makefile:8648: recipe for target 'dlls/wsdapi' failed
Task: The win32 build failed

=== debian9 (build log) ===

collect2: error: ld returned 1 exit status
Makefile:432: recipe for target 'wsdapi.dll.so' failed
Makefile:8371: recipe for target 'dlls/wsdapi' failed
Task: The wow64 build failed