tdf#120703 (PVS): Recurring check.

V571 The 'if (IsTabFrame())' condition was already verified in line 2879.

Change-Id: I738d818207d7303bc914b140c73feeb182194b27
Reviewed-on: https://gerrit.libreoffice.org/62047Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sw/source/core/layout/wsfrm.cxx

@@ -2881,8 +2881,7 @@ SwTwips SwLayoutFrame::ShrinkFrame( SwTwips nDist, bool bTst, bool bInfo )
                 SetRetouche();
             if ( IsTabFrame() )
             {
-                if( IsTabFrame() )
-                    static_cast<SwTabFrame*>(this)->SetComplete();
+                static_cast<SwTabFrame*>(this)->SetComplete();
                 if ( Lower() )  // Can also be in the Join and be empty!
                     InvalidateNextPos();
             }