Remove the unnecessary, the bot itself has been filtered out already in ActivityHandler.java

Author: fredrikluo

samples/16.proactive-messages/src/main/java/com/microsoft/bot/sample/proactive/ProactiveBot.java

@@ -10,7 +10,6 @@
 import com.microsoft.bot.schema.Activity;
 import com.microsoft.bot.schema.ChannelAccount;
 import com.microsoft.bot.schema.ConversationReference;
-import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 
@@ -58,10 +57,6 @@ protected CompletableFuture<Void> onMembersAdded(
         TurnContext turnContext
     ) {
         return membersAdded.stream()
-            .filter(
-                member -> !StringUtils
-                    .equals(member.getId(), turnContext.getActivity().getRecipient().getId())
-            )
             .map(
                 channel -> turnContext
                     .sendActivity(MessageFactory.text(String.format(WELCOMEMESSAGE, port)))