The Optimizely for Jira Integration (https://marketplace.atlassian.com/apps/1219783/optimizely-for-jira?tab=overview&hosting=cloud currently appears in all Jira projects when enabled for a Jira instance without the ability to turn off the integration for projects that don't involve/use Optimizely.
The Jira Integration should be able to be enabled/disabled for each Jira Project so it only shows up for projects where Optimizely is relevant.