Remove Debug prints from GitLabStatus.pm

These make the hydra-queue-runner logs very noisy even when not using the GitlabStatus plugin. Also, they shouldn't be necessary except when developing the plugin itself and should have been removed before release.

Created by  Nathan van Doorn  on November 2, 2020
CS3TS5GFVAABWQNY5UU3HMEMUOL6QPR2U6IOSP6Y63BL4HJ7AT5AC
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