loplugin:simplifybool (--with-webdav=serf)

Change-Id: I473854cfd45a99879b8965225d3058af08061567
Reviewed-on: https://gerrit.libreoffice.org/59962
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

ucb/source/ucp/webdav/PropertyMap.hxx

@@ -31,7 +31,7 @@ struct equalPropertyName
   bool operator()( const css::beans::Property & p1,
                    const css::beans::Property & p2 ) const
   {
-        return !!( p1.Name == p2.Name );
+        return p1.Name == p2.Name;
   }
 };