Vulkan: Remove finish calls before BufferVk::mapImpl This function already calls a finishToSerial(), which waits only for the last submission in which the buffer was used to finish. There is no need to call finish() beforehands. Bug: angleproject:3213 Change-Id: I410adb80a630ff9a1cba8f7202cf002a7ea5f87b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1731551 Reviewed-by: Ian Elliott <ianelliott@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>