dwc3-msm: Don't override USB speed with EUD based spoof connect/detach

EUD may be used concurrently with USB Superspeed, however the EUD
notification handler currently overrides USB speed as high speed.
As a result, dwc3_msm_suspend() would incorrectly skip suspending
SS PHY. Fix this issue by removing USB speed override functionality
with EUD notification handler.

Change-Id: I8dd7e241edfaafbc16745536a88d4b4cbdf71864
Signed-off-by: Mayank Rana <mrana@codeaurora.org>