Revert "ASoC: compress: Fix compress device direction check"

This breaks sound because both capture and playback are set, triggering
the -EINVAL return, which wasn't a problem before. This patch is not
needed.

This reverts commit 9a76e683b64361450f3e331dd6634f5aa39ea51b.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>