Merge pull request #1324 from microsoft/trask/remove-unnecessary-custom-property

Remove unnecessary custom property

Author: heyams

agent/exporter/src/main/java/com/microsoft/applicationinsights/agent/Exporter.java

@@ -387,7 +387,6 @@ public CompletableResultCode shutdown() {
     }
 
     private static void setProperties(Map<String, String> properties, long timeEpochNanos, String level, String loggerName, Map<String, AttributeValue> attributes) {
-        properties.put("TimeStamp", getFormattedDate(NANOSECONDS.toMillis(timeEpochNanos)));
         if (level != null) {
             properties.put("SourceType", "Logger");
             properties.put("LoggingLevel", level);
@@ -586,10 +585,6 @@ private static String createTarget(URI uriObject) {
         return target;
     }
 
-    private static String getFormattedDate(long dateInMilliseconds) {
-        return new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss 'GMT'", Locale.US).format(new Date(dateInMilliseconds));
-    }
-
     private static String getStringValue(AttributeValue value) {
         switch (value.getType()) {
             case STRING: