Removing unused serialisation code from svl

Change-Id: Ia22ea346610e925cc6d499b0cc4bc768a419f909
Reviewed-on: https://gerrit.libreoffice.org/41229Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>

svl/Library_svl.mk

@@ -122,7 +122,6 @@ $(eval $(call gb_Library_add_exception_objects,svl,\
     svl/source/config/languageoptions \
     svl/source/crypto/cryptosign \
     svl/source/filepicker/pickerhistory \
-    svl/source/filerec/filerec \
     svl/source/items/aeitem \
     svl/source/items/cenumitm \
     svl/source/items/cintitem \

svl/source/inc/poolio.hxx

@@ -25,6 +25,7 @@
 #include <memory>
 #include <unordered_map>
 #include <vector>
+#include <tools/stream.hxx>
 
 class SfxPoolItem;
 class SfxItemPoolUser;

svl/source/items/poolio.cxx

@@ -24,7 +24,6 @@
 #include <tools/solar.h>
 #include <svl/itempool.hxx>
 #include <svl/SfxBroadcaster.hxx>
-#include <svl/filerec.hxx>
 #include "poolio.hxx"
 #include <algorithm>
 #include <memory>
@@ -119,35 +118,6 @@ sal_uInt32 SfxItemPool::GetSurrogate(const SfxPoolItem *pItem) const
     return SFX_ITEMS_NULL;
 }
 
-
-/**
- * This method converts WhichIds from a file format to the version of the
- * current pool.
- * If the file format is older, the conversion tables (set by the pool developer
- * using SetVersion()) are used. If the file format is newer the conversion tables
- * loaded from the file format are used. In this case, not every WhichId can be
- * mapped in which case we return 0.
- *
- * The calculation is only defined for WhichIds supported by the corresponding
- * file version, which is guarded by an assertion.
- *
- * Precondition:   Pool must be loaded
- * Postcondition:  Unchanged
- * Runtime:        linear(Count of the secondary pools) +
- *                 linear(Difference of the old and newer version)
- *
- * @see SfxItemPool::IsLoadingVersionCurrent() const
- * @see SfxItemPool::GetVersion() const
- */
-sal_uInt16 SfxItemPool::GetNewWhich
-(
-    sal_uInt16  nFileWhich // The WhichId loaded from the stream
-)   const
-{
-    // Return original (nDiff==0) or mapped (nDiff!=0) Id
-    return nFileWhich;
-}
-
 OUString readByteString(SvStream& rStream)
 {
     return rStream.ReadUniOrByteString(rStream.GetStreamCharSet());