Check of nMultiSpace is probably no longer relevant

The original code introduced with 1d10fb11 "New:
Text adjustment in multiportions" read

+            if( nMultiSpace < KSHRT_MAX )
+            {
+                pCurr->GetpSpaceAdd()->Insert(KSHORT(nMultiSpace),0);
+                bRet = sal_True;
+            }

so needed nMulitSpace to fit into KSHORT (an alias for USHORT back then),
whereas today nMultiSpace is inserted into a std::vector<long>.

Change-Id: I24cafa7e295b87bf93f4e0ef5fbda5f99834286a
Reviewed-on: https://gerrit.libreoffice.org/49034Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

sw/source/core/text/pormulti.cxx

@@ -515,15 +515,12 @@ bool SwDoubleLinePortion::ChgSpaceAdd( SwLineLayout* pCurr,
             if( nMyBlank )
                 nMultiSpace /= nMyBlank;
 
-            if( nMultiSpace < USHRT_MAX * SPACING_PRECISION_FACTOR )
-            {
-//                pCurr->SetLLSpaceAdd( nMultiSpace, 0 );
-                // #i65711# SetLLSpaceAdd replaces the first value,
-                // instead we want to insert a new first value:
-                std::vector<long>* pVec = pCurr->GetpLLSpaceAdd();
-                pVec->insert( pVec->begin(), nMultiSpace );
-                bRet = true;
-            }
+//            pCurr->SetLLSpaceAdd( nMultiSpace, 0 );
+            // #i65711# SetLLSpaceAdd replaces the first value,
+            // instead we want to insert a new first value:
+            std::vector<long>* pVec = pCurr->GetpLLSpaceAdd();
+            pVec->insert( pVec->begin(), nMultiSpace );
+            bRet = true;
         }
     }
     return bRet;