f_mtp:Remove the unneccessary QCOM changes

f_mtp:Remove the unneccessary QCOM changes

QCOM mtp only allow one mtp instance at a time
While Samsung needs to have both mtp and ptp instances
Remove the unneccessary QCOM code

Change-Id: I820b5dd84a3a651aa3c0b10da9fc2076b6097d68
Signed-off-by: a17671 <a17671@motorola.com>
Reviewed-on: https://gerrit.mot.com/1307514
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Reviewed-by: Jun Zhang <zhangj10@motorola.com>
Submit-Approved: Jira Key