With the wet weather today I thought id go for a play in some puddles. Well I ended up sinking the nav. I get home and pull up the carpet and mop up the water. But i found on both sides in the front these funny plate things bolted to the floor. They seem useless to me but they look like they are ment to be there but they are rusty, so can i pull them off and just leave them out and plug the holes up???