Set docker container version to latest

application/src/main/data/json/edge/install_instructions/docker/instructions.md

@@ -36,7 +36,7 @@ version: '3.0'
 services:
   mytbedge:
     restart: always
-    image: "thingsboard/tb-edge:${EDGE_VERSION}"
+    image: "thingsboard/tb-edge:latest"
     ports:
       - "8080:8080"
       - "1883:1883"

application/src/main/java/org/thingsboard/server/service/edge/instructions/DefaultEdgeInstallService.java

@@ -40,8 +40,6 @@ public class DefaultEdgeInstallService implements EdgeInstallService {
 
     private static final String EDGE_DIR = "edge";
 
-    private static final String EDGE_VERSION = "3.4.3EDGE";
-
     private static final String EDGE_INSTALL_INSTRUCTIONS_DIR = "install_instructions";
 
     private final InstallScripts installScripts;
@@ -58,7 +56,6 @@ public class DefaultEdgeInstallService implements EdgeInstallService {
             dockerInstallInstructions = dockerInstallInstructions.replace("${LOCALHOST_WARNING}", "");
             dockerInstallInstructions = dockerInstallInstructions.replace("${BASE_URL}", baseUrl);
         }
-        dockerInstallInstructions = dockerInstallInstructions.replace("${EDGE_VERSION}", EDGE_VERSION);
         dockerInstallInstructions = dockerInstallInstructions.replace("${CLOUD_ROUTING_KEY}", edge.getRoutingKey());
         dockerInstallInstructions = dockerInstallInstructions.replace("${CLOUD_ROUTING_SECRET}", edge.getSecret());
         return new EdgeInstallInstructions(dockerInstallInstructions);