[SPARK-20813][WEB UI] Fixed Web UI executor page tab search by status not working

## What changes were proposed in this pull request?
On status column of the table, I removed the condition  that forced only the display value to take on values Active, Blacklisted and Dead.

Before the removal, values used for sort and filter for that particular column was True and False.
## How was this patch tested?

Tested with Active, Blacklisted and Dead present as current status.

Author: John Lee <[email protected]>

Closes #18036 from yoonlee95/SPARK-20813.

Author: John Lee

core/src/main/resources/org/apache/spark/ui/static/executorspage.js

@@ -26,7 +26,6 @@ function getThreadDumpEnabled() {
 }
 
 function formatStatus(status, type) {
-    if (type !== 'display') return status;
     if (status) {
         return "Active"
     } else {
@@ -417,7 +416,6 @@ $(document).ready(function () {
                         },
                         {data: 'hostPort'},
                         {data: 'isActive', render: function (data, type, row) {
-                            if (type !== 'display') return data;
                             if (row.isBlacklisted) return "Blacklisted";
                             else return formatStatus (data, type);
                             }