NEXUS-46878: uppdated dockerfiles removing java opts

[atamayoz]

NEXUS-46878_docker_container: fixed readme

(brief, plain english overview of your changes here)

This pull request makes the following changes:

• (your change here)
• (another change here)
• (etc)

(If there are changes to user behavior in general, please make sure to update the README, as well)

It relates to the following issue #s:

• Fixes #X