msxml3: Avoid double free of str (Coverity).

dlls/msxml3/tests/domdoc.c

@@ -11014,6 +11014,7 @@ static void test_xmlns_attribute(void)
     IXMLDOMAttribute *pAttribute;
     IXMLDOMElement *elem;
     HRESULT hr;
+    VARIANT v;
 
     doc = create_document(&IID_IXMLDOMDocument);
 
@@ -11026,9 +11027,6 @@ static void test_xmlns_attribute(void)
     str = SysAllocString(szAttribute);
     hr = IXMLDOMDocument_createAttribute(doc, _bstr_("xmlns:dt"), &pAttribute);
     ok( hr == S_OK, "returns %08x\n", hr );
-    if(hr == S_OK)
-    {
-        VARIANT v;
 
     V_VT(&v) = VT_BSTR;
     V_BSTR(&v) = _bstr_("urn:schemas-microsoft-com:datatypes");
@@ -11047,11 +11045,9 @@ static void test_xmlns_attribute(void)
     ok( hr == S_OK, "got 0x%08x\n", hr);
     todo_wine ok( lstrcmpW(str, _bstr_("<Testing xmlns:dt=\"urn:schemas-microsoft-com:datatypes\" dt:dt=\"bin.base64\"/>")) == 0,
     "got %s\n", wine_dbgstr_w(str));
-        SysFreeString(str);
 
     IXMLDOMElement_Release(elem);
     IXMLDOMAttribute_Release( pAttribute);
-    }
 
     SysFreeString(str);