goldfish-opengl: nuke HostMemBlock::isDeviceAddressMemoryAllocation

isDedicated = isDeviceAddressMemoryAllocation.  SubAllocation
nevers happens from dedicated blocks due the prior check, and thus
since dedicated blocks are device address memory blocks, never happens
from device memory address allocations.

BUG=233803018
TEST=compile

Change-Id: I3759ac7ec3981c81dd2c4ce9cfb6ca31c98c08d3
2 files changed