Add Trap Level Zero to interrupts, remove some unreachable code that I forgot to remove last time.
Add Trap Level Zero to interrupts, remove some unreachable code that I forgot to remove last time.

--HG--
extra : convert_revision : 74c4c4591be5a66c21077a6fc5f3f60b0ee9bcc1

zlfben/gem5,briancoutinho0905/2dsampling,SanchayanMaity/gem5,powerjg/gem5-ci-test,markoshorro/gem5,zlfben/gem5,Weil0ng/gem5,cancro7/gem5,sobercoder/gem5,KuroeKurose/gem5,sobercoder/gem5,joerocklin/gem5,qizenguf/MLC-STT,zlfben/gem5,sobercoder/gem5,sobercoder/gem5,qizenguf/MLC-STT,yb-kim/gemV,TUD-OS/gem5-dtu,sobercoder/gem5,rallylee/gem5,austinharris/gem5-riscv,rjschof/gem5,rjschof/gem5,TUD-OS/gem5-dtu,austinharris/gem5-riscv,zlfben/gem5,rjschof/gem5,rallylee/gem5,gem5/gem5,powerjg/gem5-ci-test,samueldotj/TeeRISC-Simulator,KuroeKurose/gem5,gem5/gem5,yb-kim/gemV,kaiyuanl/gem5,joerocklin/gem5,markoshorro/gem5,rallylee/gem5,yb-kim/gemV,KuroeKurose/gem5,briancoutinho0905/2dsampling,SanchayanMaity/gem5,cancro7/gem5,HwisooSo/gemV-update,cancro7/gem5,aclifton/cpeg853-gem5,samueldotj/TeeRISC-Simulator,SanchayanMaity/gem5,powerjg/gem5-ci-test,aclifton/cpeg853-gem5,sobercoder/gem5,gedare/gem5,gedare/gem5,HwisooSo/gemV-update,qizenguf/MLC-STT,kaiyuanl/gem5,samueldotj/TeeRISC-Simulator,austinharris/gem5-riscv,zlfben/gem5,TUD-OS/gem5-dtu,rjschof/gem5,briancoutinho0905/2dsampling,briancoutinho0905/2dsampling,kaiyuanl/gem5,qizenguf/MLC-STT,SanchayanMaity/gem5,TUD-OS/gem5-dtu,aclifton/cpeg853-gem5,HwisooSo/gemV-update,zlfben/gem5,powerjg/gem5-ci-test,samueldotj/TeeRISC-Simulator,Weil0ng/gem5,yb-kim/gemV,SanchayanMaity/gem5,qizenguf/MLC-STT,joerocklin/gem5,gedare/gem5,joerocklin/gem5,kaiyuanl/gem5,gem5/gem5,joerocklin/gem5,gem5/gem5,markoshorro/gem5,cancro7/gem5,gedare/gem5,gem5/gem5,Weil0ng/gem5,Weil0ng/gem5,markoshorro/gem5,briancoutinho0905/2dsampling,markoshorro/gem5,HwisooSo/gemV-update,cancro7/gem5,cancro7/gem5,powerjg/gem5-ci-test,aclifton/cpeg853-gem5,KuroeKurose/gem5,gem5/gem5,rallylee/gem5,Weil0ng/gem5,kaiyuanl/gem5,samueldotj/TeeRISC-Simulator,gem5/gem5,rjschof/gem5,briancoutinho0905/2dsampling,TUD-OS/gem5-dtu,rallylee/gem5,aclifton/cpeg853-gem5,gedare/gem5,qizenguf/MLC-STT,KuroeKurose/gem5,HwisooSo/gemV-update,zlfben/gem5,yb-kim/gemV,gedare/gem5,SanchayanMaity/gem5,HwisooSo/gemV-update,qizenguf/MLC-STT,powerjg/gem5-ci-test,HwisooSo/gemV-update,rjschof/gem5,markoshorro/gem5,kaiyuanl/gem5,joerocklin/gem5,aclifton/cpeg853-gem5,rjschof/gem5,sobercoder/gem5,TUD-OS/gem5-dtu,TUD-OS/gem5-dtu,yb-kim/gemV,austinharris/gem5-riscv,joerocklin/gem5,Weil0ng/gem5,powerjg/gem5-ci-test,kaiyuanl/gem5,yb-kim/gemV,austinharris/gem5-riscv,samueldotj/TeeRISC-Simulator,SanchayanMaity/gem5,markoshorro/gem5,austinharris/gem5-riscv,yb-kim/gemV,KuroeKurose/gem5,rallylee/gem5,joerocklin/gem5,austinharris/gem5-riscv,briancoutinho0905/2dsampling,rallylee/gem5,aclifton/cpeg853-gem5,gedare/gem5,samueldotj/TeeRISC-Simulator,cancro7/gem5,KuroeKurose/gem5,Weil0ng/gem5