Only show checkins between mindate & maxdate on waterfall page

Bug #390534 r=bear

webtools/tinderbox/tbglobals.pl

@@ -904,8 +904,6 @@ sub load_who {
       if ($checkin_time < ${$td_ref}->{build_time_times}->[$ii]) {
         $who_list->[$ii+1]->{$email} = 1;
         last;
-      } elsif ($ii == 0) {
-        $who_list->[0]->{$email} = 1;
       }
     }
   }
@@ -1094,10 +1092,6 @@ sub make_build_table {
                     }
                 }
 
-                if ($ti1 > 0 and defined($br1 = $build_table->[$ti1][$bi])) {
-                    $br->{nextbuildtime} = $br1->{buildtime};
-                }
-
                 $br->{rowspan} = $ti - $ti1;
                 unless ($br->{rowspan} == 1) {
                     $build_table->[$ti1+1][$bi] = $br;