ENH: ignore -noFunctionObjects option when disabled

- With argList::noFunctionObjects() we use the logic added in
  4b93333292 (issue #352)

  By removing the '-noFunctionObjects' option, we automatically
  suppress the creation of function-objects via Time (with argList
  as a parameter).
  There is generally no need in these cases for an additional

      runTime.functionObjects().off()  statement

  Use the argList::noFunctionObjects() for more direct configuration
  and reduce unnecessary clutter in the -help information.

  In previous versions, the -noFunctionObjects would have been redundant
  anyhow, so we can also just ignore it now instead.

applications/utilities/parallelProcessing/redistributePar/redistributePar.C

@@ -2250,6 +2250,8 @@ void redistributeLagrangian
 
 int main(int argc, char *argv[])
 {
+    argList::noFunctionObjects();  // Never use function objects
+
     // enable -constant ... if someone really wants it
     // enable -zeroTime to prevent accidentally trashing the initial fields
     timeSelector::addOptions(true, true);
@@ -2406,7 +2408,7 @@ int main(int argc, char *argv[])
     // ~~~~~~~~~~~~~~
 
     #include "createTime.H"
-    runTime.functionObjects().off();
+    runTime.functionObjects().off();  // Extra safety?
 
 
     // Save local processor0 casename