Revert "coverity#736452 Resource leak"

Somehow this one lets the windows tinderboxes fail.

This reverts commit f6012f6c5d.

Change-Id: I1f3e503bef74956f64bb2f0b9d748fc7fc7299c5

sd/source/filter/sdpptwrp.cxx

@@ -116,8 +116,6 @@ bool SdPPTFilter::Import()
 
                     if ( !bRet )
                         mrMedium.SetError( SVSTREAM_WRONGVERSION, OSL_LOG_PREFIX );
-
-                    delete pLibrary;
                 }
 #else
                 bRet = ImportPPT( &mrDocument, *pDocStream, *pStorage, mrMedium );