NFC edundo.cxx: remove unused bRet

Orphaned with commit 20e5f64215853bdd32c5f16394ba7f2f36745904
Author: Noel Grandin on Fri Jan 19 14:40:12 2018 +0200
loplugin:unused-returns in sw
    Reviewed-on: https://gerrit.libreoffice.org/48189

Interestingly, Noel removed bRet from ::Repeat(),
but not from these identical situations.

Change-Id: I3544bac6b5c087bb10c8f94005d3bc89bd2727d6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/169526
Tested-by: Jenkins
Reviewed-by: Justin Luth <jluth@mail.com>
diff --git a/sw/source/core/edit/edundo.cxx b/sw/source/core/edit/edundo.cxx
index 1e7f93d..9fa5342 100644
--- a/sw/source/core/edit/edundo.cxx
+++ b/sw/source/core/edit/edundo.cxx
@@ -110,7 +110,6 @@ void SwEditShell::Undo(sal_uInt16 const nCount, sal_uInt16 nOffset)

    // current undo state was not saved
    ::sw::UndoGuard const undoGuard(GetDoc()->GetIDocumentUndoRedo());
    bool bRet = false;

    StartAllAction();
    {
@@ -138,7 +137,7 @@ void SwEditShell::Undo(sal_uInt16 const nCount, sal_uInt16 nOffset)
        try {
            for (sal_uInt16 i = 0; i < nCount; ++i)
            {
                bRet = GetDoc()->GetIDocumentUndoRedo().UndoWithOffset(nOffset) || bRet;
                GetDoc()->GetIDocumentUndoRedo().UndoWithOffset(nOffset);
            }
        } catch (const css::uno::Exception &) {
            TOOLS_WARN_EXCEPTION("sw.core", "SwEditShell::Undo()");
@@ -165,8 +164,6 @@ void SwEditShell::Redo(sal_uInt16 const nCount)

    CurrShell aCurr( this );

    bool bRet = false;

    // undo state was not saved
    ::sw::UndoGuard const undoGuard(GetDoc()->GetIDocumentUndoRedo());

@@ -192,8 +189,7 @@ void SwEditShell::Redo(sal_uInt16 const nCount)
        try {
            for (sal_uInt16 i = 0; i < nCount; ++i)
            {
                bRet = GetDoc()->GetIDocumentUndoRedo().Redo()
                    || bRet;
                GetDoc()->GetIDocumentUndoRedo().Redo();
            }
        } catch (const css::uno::Exception &) {
            TOOLS_WARN_EXCEPTION("sw.core", "SwEditShell::Redo()");