clang-analyzer-deadcode.DeadStores

...ever since cc316b39 "Port of Lotus Word Pro
filter, by Fong Lin and Noel Power"

Change-Id: Ia7eb16a63c53a43f6c57e26aa629f7c9cf7ef089

lotuswordpro/source/filter/lwpatomholder.cxx

@@ -84,7 +84,7 @@ void LwpAtomHolder::Read(LwpObjectStream *pStrm)
 
     //rtl_TextEncoding rEncode =  osl_getThreadTextEncoding();
     rtl_TextEncoding rEncode =  RTL_TEXTENCODING_MS_1252;
-    len = LwpTools::QuickReadUnicode(pStrm, m_String, diskSize-sizeof(diskSize), rEncode);
+    LwpTools::QuickReadUnicode(pStrm, m_String, diskSize-sizeof(diskSize), rEncode);
 }
 /**
  * @descr       skip the atom holder in object stream