Remove PR 664 genomic-island ICE trait subclass connector #701

Adversarial review on PR #664 flagged data/traits/genomics/genomic_island.yaml:163: integrative_conjugative_element --rdfs:subClassOf--> gi_trait makes a GENETIC_ELEMENT a subclass of the possession TRAIT. The Bioteau quote supports an element-level reading, not subclassing the trait node.\n\nDrop this unsupported connector or rescope the target so the edge is not a category error.\n\nRaised from PR #664 adversarial review 5136751900.