[roll] Roll fuchsia Revert "[ffx][flash]: flash uses event based reconnect"

This reverts commit c2201c09e440b22978cbc4b50e09b8021f449e5a.

Reason for revert: Spike on Nelson flashing failures https://chat.google.com/room/AAAABFiUm4o/SdBEtnmIviM

Original change's description:
> [ffx][flash]: flash uses event based reconnect
>
> This is a reland of commit 10423420caf91294be7e09c6134ac576376962b3
>
> The UsbFactory's rediscover method needed to be refactored from the
> original commit to not cause crosstalk.
>
> Using the generic "wait_for_devices" function, each usb
> device is probed to see if it is in fastboot mode. While this works fine
> in low volume situations. In an infrastructure environment with more
> than 10 devices idling in fastboot (or being flashed actively) at a
> time, this can cause crosstalk and unexpected errors. By doing a
> more strict discovery of USB Targets, we can eliminate this.
>
> This adds function check to usb_bulk::AsyncInterface, which returns true
> if an Interface could be opened which matches the provided matcher.
> it should be noted that this does NOT drain the buffer which
> usb_bulk::AsyncInterface::open will do.
>
> Now, in the flash process, when rebooting the bootloader (after flashing
> the new bootloader) instead of using a configurable sleep to wait for
> the target to reappear (and continue to flash the product), the tool
> will use the discovery library to begin looking for the target to
> reappear in fastboot mode.
>
> This assumes:
>   1. A target will never change fastboot connection mechanisms. For
>      example, it is assumed that if a target is connected via USB, after
>      the bootloader reboots it will continue to be available via USB
>   2. A target's name (for fastboot over TCP/UDP) is consistent across
>      reboots.
>   3. A target's serial number (for fastboot over USB) is consistent
>      across reboots.
>
> Release-Notes: ffx uses event based reconnect for flashing.
> Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/974920

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/984539
Original-Revision: 11e24a6d72218bf687780196c2d1540fb93f4def
GitOrigin-RevId: 7c5f62263d13bdf885cdb70a1d5427a1eb51ee1e
Change-Id: Ie144ff7ceea3be5080f17c924f1c0275d444e771