Remove mConnectingTimestampMs logic in Connected state

It is not possible to go directly from mDisconnected to mConnected.
Thus, mmConnectingTimestampMs is not possible equal to Long.MIN_VALUE
when enter Connected state.

Bug: 112684639
Test: manual
Change-Id: I8779be5858ae3df14cc6c27450d06ad818e4d22f
1 file changed