sdm: Disable special handling for empty layer stacks

A previous commit (82b06f49f8f2a7471381d5b68583407718495b81)
introduced this handling to reduce blank time between
bootanimation and splash screen - disable this handling.

CRs-Fixed: 2336841
Change-Id: I08521321849420216a516e5ea12e75674d7c74cb
1 file changed