Disconnect a2dp/hfp profile by default for le audio dual mode device

When the remote device support LE audio/A2DP/HFP profiles, clear
a2dp/hfp connectionPolicy to connect LE audio profile only by default

Bug: 231511825
Test: connect le aduio dual mode device, check the behavior meet the
expectation as property true or false

Change-Id: I90a302a2ba9de702498b00827269a4acbbd42a94