Revert "dwc3-msm: Perform soft reset of USB GSI interface"

This reverts commit 4148ee91 ("dwc3-msm: Perform soft reset of
USB GSI interface") as doing USB GSI wrapper soft reset is causing
some unrelated issue.

Change-Id: I8fae25eea03256cc998d9d555dbbf20a53d39c71
Signed-off-by: Mayank Rana <mrana@codeaurora.org>