U.S. mortgage borrowers were somewhat less eager to tap the equity they have in their homes during the first quarter, but they have plenty of dry powder in a market that’s expected to continue tilting away from refinance lending. Originations of home-equity lines of credit and closed-end second mortgages fell 5.0 percent during the first quarter to an estimated $46.0 billion, according to a new Inside Mortgage Finance analysis. Compared to the sharp 33.6 percent drop in first-lien production, the home-equity sector virtually glowed. The supply of home-equity loans outstanding fell...[Includes three data tables]