Camera: avoid double closing FD

Right now conventional HAL close the acquire_fence FD so wrapper
should not close it again. However, we might need to change this
behavior later to make camera service agnostic to passthrough or
binderized mode.

Bug: 34169301
Change-Id: I96b46521e4081b43e7a7e9c9efa98121739dda99
1 file changed