Remove unnecessary MAVEN_CONFIG

[danielsiwiec]

Remove unused environment variable. The MAVEN_CONFIG variable is used by the maven Docker image (which we're not using) and is not used by Maven itself in any way. It is colliding with Maven Wrapper configuration (which also uses this variable) and is causing feast-dev/feast-java-old#26 to fail

[feast-ci-bot]

Hi @danielsiwiec. Thanks for your PR.

I'm waiting for a feast-dev member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[danielsiwiec]

/assign @woop

[woop]

/ok-to-test

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danielsiwiec, woop

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[woop]

/lgtm

[woop]

/lgtm