msm: ipa3: fix uC load notification

This change removes the duplicate call to notify about IPA uC load.
This is already called as part of QMI handshake with modem.

Change-Id: I56fd8f7d6c45547a355acd1e51fc4aac3fe90b15
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>