drivers: soc: qcom: Remove usbc switching to DFP mode

As the tccdebounce is now sufficient enough to detect
audio accessory removal no need to switch to DFP mode
during usbc audio headset insertion.

Change-Id: I623de48209211ccaeab8ef1a1291e1893e571354
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>