David Solomon, Jamie Dimon, and Jane Fraser's banks all have policies in place to monitor bankers' hours.Getty ImagesWall Street H-1B filings are down year-over-year following Trump's visa crackdown.While some large visa filers, like Goldman Sachs, are down year over year, others are up.Financial firms often use H-1B hires to boost their technical staff, but AI could complicate that.H-1B visa filings fell at major financial firms like Goldman Sa…