fixed policy and unsused code in X86 pass and visc-rt

hpvm/lib/Transforms/DFG2LLVM_X86/DFG2LLVM_X86.cpp

hpvm/projects/visc-rt/deviceStatusSwitchIntervals.txt

hpvm/projects/visc-rt/device_abstraction.h

hpvm/projects/visc-rt/makefile

hpvm/projects/visc-rt/policy.h

hpvm/projects/visc-rt/visc-rt.cpp

hpvm/projects/visc-rt/visc-rt.h

hpvm/test/hpvm-cava/Makefile

hpvm/test/hpvm-cava/Makefile.config

hpvm/test/hpvm-cava/Makefile.config.example

hpvm/test/parboil/common/mk/visc.mk

hpvm/test/pipeline/Makefile

hpvm/test/pipeline/Makefile.config

hpvm/test/pipeline/Makefile.config.example