A2DP: Remove SetActive Device empty address check

Due to empty address check logic in JNI layer for
SetActiveDevice NULL call is not reaching out till
BT Stack and not resetting the active device flags
causing the mismatch between BT App and BT Stack.

CRs-Fixed: 2450377
Change-Id: I3c75e98a76fdff43a0721221dbfe5a895a7b6428
1 file changed