leaudio: Remove missleading logs

Since for each device left and right capabilities are checked, there
will be always log saying that one of the side is not available - this
is missleading

Bug: 263561700
Test: atest BluetoothInstrumentationTests
Tag: #feature

Merged-In: I7a607d3dda85da74bcd4a2ab381428f0897ff9dd
Change-Id: I7a607d3dda85da74bcd4a2ab381428f0897ff9dd
(cherry picked from commit ee60d48c)