As now it's fully integrated no need to keep.

coupler/opc-ua-server/build.sh

 #!/bin/bash
-rm -f server_publish server_subscribe 
+rm -f server
 
 # build OPC UA server which publishes msgs
 gcc  -o server -I /usr/local/include/ -std=c99 server.c -l:libopen62541.so -L/usr/local/lib -lmbedcrypto  -lmbedx509 -I ~/open62541/src/pubsub/  -I ~/open62541/deps/
 
-
-# build OPC Ua server which subscribes to msgs
-#gcc -o server_subscribe -I /usr/local/include/ -std=c99 server_subscribe.c -l:libopen62541.so -L/usr/local/lib -I ~/open62541/src/pubsub/  -I ~/open62541/deps/
-