util: Remove unnecessary initialization

VIR_ALLOC will already initialize, so no need to do it again.

src/util/virsysinfo.c

@@ -597,8 +597,6 @@ virSysinfoReadS390(void)
         goto no_memory;
     }
 
-    ret->nprocessor = 0;
-    ret->processor = NULL;
     if (virSysinfoParseS390Processor(outbuf, ret) < 0)
         goto no_memory;