msm: net: ecm_ipa: remove rm destroy from cleanup

IPA RM resource and dependencies are deleted as part
of disconnect API. This change removes the wrong call
to delete RM dependencies from cleanup API.

Change-Id: Ieb14654c5db99577052022d5a2a2f84996b7c6ad
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Nadine Toledano <nadinet@codeaurora.org>