ClientModeImpl: Remove CMD_ENABLE_P2P & CMD_DISABLE_P2P with P2P service

The interactions being removed are:
Enable/Disable P2P - This was a message sent by wifi service to p2p
service when wpa_supplicant is brought up/down (i.e client mode). In P,
we added a mechanism for p2p service to directly listen for the public
WIFI_STATE_CHANGED broadcast to shut itself down.

Bug: 76031270
Test: Unit tests - atest frameworks/opt/net/wifi/tests/wifitests
Test: CtsVerifier - WiFi Direct category
Test: Device boots up & connects to networks.
Change-Id: If7fd794b0e3685f7a4d8bbac23bb7cb49c34c76f
2 files changed