The body was buried unclothed—washed and wrapped only in linen. The Mishnah (Moed Katan 27b) even insists that the wealthy should not be buried in expensive garments, so as not to shame the poor. Rabbi Gamaliel II set the precedent by requesting to be buried in simple linen.
This means that if the burial linens were left behind, Jesus had no clothes in the tomb. Yet this was not a problem. He did not experience resurrection inside the tomb; rather, at the very moment of resurrection, his body was relocated to another space–time frame—specifically, to the Garden of Gethsemane. When the body vanished, the linen wrappings and head cloth simply fell neatly to the ground by gravity. If he had unwrapped them himself, they would have been left scattered instead.
In the tomb, the body was gone. In the garden, however, the body appeared clothed in garments appropriate to that particular moment in space and time. (Surely, Jesus was not praying to the Father while naked.) The body did not need new garments supplied—it simply resumed the clothes already belonging to that moment of reality. Thus, Jesus could depart the garden immediately, without anyone providing him with clothing.