remove unused PAGESIDE enum

Change-Id: I45185865ec0645040b129885beb97bebafefe70a
Reviewed-on: https://gerrit.libreoffice.org/63747Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>

compilerplugins/clang/unusedenumconstants.untouched.results

@@ -466,12 +466,6 @@ sw/inc/poolfmt.hxx:234
     enum RES_POOL_TABSTYLE_TYPE RES_POOLTABLESTYLE_LO6_SIMPLE_LIST_SHADED
 sw/inc/tblafmt.hxx:286
     enum SwTableAutoFormat::UpdateFlags UPDATE_ALL
-sw/source/core/inc/txtfly.hxx:42
-    enum PAGESIDE RIGHT_SIDE
-sw/source/core/inc/txtfly.hxx:42
-    enum PAGESIDE LEFT_SIDE
-sw/source/core/inc/txtfly.hxx:42
-    enum PAGESIDE DONTKNOW_SIDE
 sw/source/filter/ww8/ww8scan.hxx:388
     enum ePLCFT SEP
 sw/source/filter/ww8/ww8struc.hxx:944

sw/source/core/inc/txtfly.hxx

@@ -39,8 +39,6 @@ class SwContourCache;
 
 typedef std::vector< SwAnchoredObject* > SwAnchoredObjList;
 
-enum PAGESIDE { LEFT_SIDE, RIGHT_SIDE, DONTKNOW_SIDE };
-
 /** Contour-cache global variable, initialized/destroyed in txtinit.cxx
     and needed in txtfly.cxx by text wrapping.
   */