Fix #2297: Remove user name from XML

Signed-off-by: Diego Giovane Pasqualin <dpasqualin@c3sl.ufpr.br>

agent/gen-scripts/collected-data/user-history.tree

@@ -55,7 +55,6 @@ do
             exit 0
         fi
 
-        login=$(echo $line | awk -F' ' '{print $1}')
         login_time=$(echo $line | awk -F' ' '{print $7}')
         logout_time=$(echo $line | awk -F' ' '{print $13}')
 
@@ -66,7 +65,6 @@ do
         count=$(($count+1))
         printf "<user>"
         printf "<id>$count</id>"
-        printf "<name>$login</name>"
         printf "<login>$login_time</login>"
         printf "<logout>$logout_time</logout>"
         printf "</user>"