SAN FRANCISCO — The Warriors won’t grieve the end of a four-game win streak much. Though the Boston Celtics handed them a 110-88 loss on Wednesday night at Chase Center, all concerns center around Steph Curry’s health. Curry injured his foot in the first half and was ruled out for the rest of the game when Marcus Smart rolled over it fighting for a loose ball. Smart doubled down with a mid-air kick at Klay Thompson’s neck. Worn by this team’s struggle to stay healthy, head coach Steve Kerr chided Smart from the sideline for his aggressive play. Curry’s injury cast a cloud over a physical game …