remove LLVM SYSPATH for LLVM rebase (#76)

Author: RUIJIEZHONG66166

.github/workflows/triton_xpu_backend_ci.yml

@@ -79,7 +79,6 @@ jobs:
           echo -e "[ INFO ] Run UT test on Node $(hostname)"
           source ${HOME}/miniconda3/bin/activate triton-preci
           source ${HOME}/env_triton.sh
-          export LLVM_SYSPATH=${HOME}/triton-preci/llvm/build/
           pip install pytest
           rm -rf ~/.triton/cache
           export TRITON_LIBDEVICE_PATH=${HOME}/actions-runner/_work/intel-xpu-backend-for-triton/intel-xpu-backend-for-triton/triton/python/triton/third_party/xpu/lib

.github/workflows/triton_xpu_backend_e2e_ci.yml

@@ -77,7 +77,6 @@ jobs:
           echo -e "[ INFO ] Run E2E test on Node $(hostname)"
           source ${HOME}/miniconda3/bin/activate triton-preci
           source ${HOME}/env_triton.sh
-          export LLVM_SYSPATH=${HOME}/triton-preci/llvm/build/
           pip install pandas
           cd ${HOME}/triton-preci
           bash set_proxy.sh

.github/workflows/triton_xpu_backend_e2e_nightly.yml

@@ -74,7 +74,6 @@ jobs:
           echo -e "[ INFO ] Run E2E test on Node $(hostname)"
           source ${HOME}/miniconda3/bin/activate triton-nightly-test
           source ${HOME}/env_triton.sh
-          export LLVM_SYSPATH=${HOME}/triton-nightly/llvm/build/
           pip install pandas
           cd ${HOME}/triton-nightly
           bash set_proxy.sh

.github/workflows/triton_xpu_backend_nightly.yml

@@ -72,7 +72,6 @@ jobs:
           echo -e "[ INFO ] Run UT test on Node $(hostname)"
           source ${HOME}/miniconda3/bin/activate triton-preci
           source ${HOME}/env_triton.sh
-          export LLVM_SYSPATH=${HOME}/triton-preci/llvm/build/
           pip install pytest
           rm -rf ~/.triton/cache
           export TRITON_LIBDEVICE_PATH=${HOME}/actions-runner/_work/intel-xpu-backend-for-triton/intel-xpu-backend-for-triton/triton/python/triton/third_party/xpu/lib