Removing static IPs to avoid conflicts with sharing_gitlab

During the last reboot of the development server, sharing_gitlab was unable to startup because of conflicting IPs.

This MR tries to mitigate this problem in the future by removing static IPs for the other sharing services.

Involved services:

• elasticsearch
• Gitlab (changes in file-hooks repo)

src/main/docker/gitsearch.yml

@@ -123,8 +123,6 @@ services:
       - backend
       - frontend
 
-
-
   # sharing_elasticsearch:
   #   image: 'docker.elastic.co/elasticsearch/elasticsearch:7.17.6'
   #   container_name: sharing_elasticsearch