Temporally remove audio V5 from the VNDK to save space

The HAL V5 is adding too much code that leads to maxing out the system
space on Pixel 1.
When a way to reduce the system file size will be found, the V5 will be
added back.

Test: compile
Change-Id: I479d63c325fd44c7b5c9d18b2b9a318ff56762fe
Signed-off-by: Kevin Rocard <krocard@google.com>