Code simplification in libsvn_auth_kwallet.
Code simplification in libsvn_auth_kwallet.

* subversion/libsvn_auth_kwallet/kwallet.cpp
  (): Don't include <QtGui/QWidget>.
  (kwallet_password_get, kwallet_password_set): Use -1 as WId.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion