Bug in taxonomy_vocab_relate_submit()

Line 66 currently reads:

variable_del('taxonomy_vocab_relate'. $vid);

However, the variable name is actually taxonomy_vocab_relate_N, so line 66 should read:

variable_del('taxonomy_vocab_relate_'. $vid);

This is only a minor UI bug, but I noticed it was still in the dev branch & wanted to point it out. :)