Revert "BACKPORT: FROMGIT: usb: gadget: udc: Handle gadget_connect failure during bind operation"

This reverts commit 251aa28d.

Reason for revert: b/301670242

The connect_lock mutex is not being released in error path. This patch was reverted upstream.

Signed-off-by: Neill Kapron <nkapron@google.com>
Change-Id: I802a9a8afc9f23b1bf91fa4df4bfb5d207373b04