correct ISOWEEKNUM resource ExtraData parameter flags, tdf#50950 follow-up

... which now has exactly 1 parameter; removed the now non-matching
required flag of a not existing second parameter. Luckily the resource
manager treats this as a separate record block and this 0 didn't harm
the subsequent 0, accidentally..

Change-Id: I0994ed75643245c1bdebc9a92ade77abdd1c61d8

sc/source/ui/src/scfuncs.src

@@ -1200,7 +1200,7 @@ Resource RID_SC_FUNCTION_DESCRIPTIONS1
             0;
             ID_FUNCTION_GRP_DATETIME;
             U2S( HID_FUNC_ISOWEEKNUM );
-            1;  0;  0;
+            1;  0;
             0;
         };
         String 2 // Name of Parameter 1