plugins: don't draw LINE2 where it's not needed

plugins/ntpdate

@@ -3,9 +3,7 @@ config_ntpdate() {
   echo "graph_args --base 1000 --vertical-label msec"
   echo "graph_category time"
   echo "offset.label Offset"
-  echo "offset.draw LINE2"
   echo "delay.label Delay"
-  echo "delay.draw LINE2"
 }
 
 fetch_ntpdate() {

plugins/processes

@@ -5,7 +5,6 @@ config_processes() {
   echo "graph_category processes"
   echo "graph_info This graph shows the number of processes in the system."
   echo "processes.label processes"
-  echo "processes.draw LINE2"
   echo "processes.info The current number of processes."
 }
 fetch_processes() {