tdf#120703 (PVS): redundant nullptr check

V668 There is no sense in testing the 'pPor' pointer against null, as the
     memory was allocated using the 'new' operator. The exception will be
     generated in the case of memory allocation error.

Change-Id: I58d553fc59606f54013246f23a1b18a4ab673aac
Reviewed-on: https://gerrit.libreoffice.org/62148
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

sw/source/core/text/itrform2.cxx

@@ -1387,7 +1387,7 @@ SwLinePortion *SwTextFormatter::NewPortion( SwTextFormatInfo &rInf )
     // Special portions containing numbers (footnote anchor, footnote number,
     // numbering) can be contained in a rotated portion, if the user
     // choose a rotated character attribute.
-    if ( pPor && ! pMulti )
+    if (!pMulti)
     {
         if ( pPor->IsFootnotePortion() )
         {