Multi-line comments cleanup (#19535)

Marlin/src/sd/usb_flashdrive/lib-uhs2/Usb.cpp

@@ -640,7 +640,6 @@ again:
  * 7: for (each driver) {
  *      7a: Ask device if it knows this VID/PID. Acts exactly like 6a, but using VID/PID
  * 8: if we get here, no driver likes the device plugged in, so exit failure.
- *
  */
 uint8_t USB::Configuring(uint8_t parent, uint8_t port, bool lowspeed) {
   //uint8_t bAddress = 0;

Marlin/src/sd/usb_flashdrive/lib-uhs2/masstorage.cpp

@@ -828,7 +828,6 @@ uint8_t BulkOnly::ClearEpHalt(uint8_t index) {
 
 /**
  * For driver use only.
- *
  */
 void BulkOnly::Reset() {
         while (pUsb->ctrlReq(bAddress, 0, bmREQ_MASSOUT, MASS_REQ_BOMSR, 0, 0, bIface, 0, 0, nullptr, nullptr) == 0x01) delay(6);
@@ -1163,7 +1162,6 @@ uint8_t BulkOnly::HandleSCSIError(uint8_t status) {
 ////////////////////////////////////////////////////////////////////////////////
 
 /**
- *
  * @param ep_ptr
  */
 void BulkOnly::PrintEndpointDescriptor(const USB_FD_ENDPOINT_DESCRIPTOR * ep_ptr) {