sot: remove unused Owner construct on StgPage

Change-Id: Idd6616ac11e16b4c4631c607a3dc92417a796521

sot/source/sdstor/stgcache.cxx

@@ -70,7 +70,6 @@ StgPage::StgPage( StgCache* p, short n )
     pNext2 =
     pLast1 =
     pLast2 = NULL;
-    pOwner = NULL;
 }
 
 StgPage::~StgPage()

sot/source/sdstor/stgcache.hxx

@@ -85,7 +85,6 @@ class StgPage {
     StgCache* pCache;                       // the cache
     StgPage *pNext1, *pLast1;               // LRU chain
     StgPage *pNext2, *pLast2;               // ordered chain
-    StgDirEntry* pOwner;                    // owner
     sal_Int32   nPage;                          // page #
     sal_uInt8*  pData;                          // nPageSize characters
     short   nData;                          // size of this page
@@ -97,7 +96,6 @@ public:
     sal_Int32 GetPage()                     { return nPage;             }
     void* GetData()                     { return pData;             }
     short GetSize()                     { return nData;             }
-    void  SetOwner( StgDirEntry* p )    { pOwner = p;               }
     // routines for accessing FAT pages
     // Assume that the data is a FAT page and get/put FAT data.
     sal_Int32 GetPage( short nOff )

sot/source/sdstor/stgstrms.cxx

@@ -868,7 +868,6 @@ void* StgDataStrm::GetPtr( sal_Int32 Pos, sal_Bool bForce, sal_Bool bDirty )
         StgPage* pPg = rIo.Get( nPage, bForce );
         if (pPg && nOffset < pPg->GetSize())
         {
-            pPg->SetOwner( pEntry );
             if( bDirty )
                 pPg->SetDirty();
             return ((sal_uInt8 *)pPg->GetData()) + nOffset;
@@ -905,7 +904,6 @@ sal_Int32 StgDataStrm::Read( void* pBuf, sal_Int32 n )
                 if( pPg )
                 {
                     // data is present, so use the cached data
-                    pPg->SetOwner( pEntry );
                     memcpy( p, pPg->GetData(), nBytes );
                     nRes = nBytes;
                 }
@@ -919,7 +917,6 @@ sal_Int32 StgDataStrm::Read( void* pBuf, sal_Int32 n )
                 pPg = rIo.Get( nPage, sal_False );
                 if( !pPg )
                     break;
-                pPg->SetOwner( pEntry );
                 memcpy( p, (sal_uInt8*)pPg->GetData() + nOffset, nBytes );
                 nRes = nBytes;
             }
@@ -966,7 +963,6 @@ sal_Int32 StgDataStrm::Write( const void* pBuf, sal_Int32 n )
                 if( pPg )
                 {
                     // data is present, so use the cached data
-                    pPg->SetOwner( pEntry );
                     memcpy( pPg->GetData(), p, nBytes );
                     pPg->SetDirty();
                     nRes = nBytes;
@@ -981,7 +977,6 @@ sal_Int32 StgDataStrm::Write( const void* pBuf, sal_Int32 n )
                 pPg = rIo.Get( nPage, sal_False );
                 if( !pPg )
                     break;
-                pPg->SetOwner( pEntry );
                 memcpy( (sal_uInt8*)pPg->GetData() + nOffset, p, nBytes );
                 pPg->SetDirty();
                 nRes = nBytes;