Revert "soong_config: Add flag for devices use metadata as FDE key"

* Qcom reverted the relevant commit in cryptfs_hw

This reverts commit a4d6ce67e76769bea45a1538c3e2d52b12dd9a38.

Change-Id: Ife1812ebc80946953e3d1a558617c94ddbc7fad4
2 files changed