Update Dockerfile

Disable triton as this is not requirement for cs9 docker based testing.

http://rocm-ci.amd.com/job/mainline-framework-pytorch-internal-cs9-ci/391/console
It's failing currently for cs9

20:36:18  #46 304.3 /var/lib/jenkins/.triton/llvm/llvm-7d5de303-ubuntu-x64/bin/mlir-tblgen: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /var/lib/jenkins/.triton/llvm/llvm-7d5de303-ubuntu-x64/bin/mlir-tblgen)

Author: pramenku

.ci/docker/centos-rocm/Dockerfile

@@ -98,7 +98,7 @@ COPY ./common/install_triton.sh install_triton.sh
 COPY ./common/common_utils.sh common_utils.sh
 COPY ci_commit_pins/triton.txt triton.txt
 COPY triton_version.txt triton_version.txt
-RUN if [ -n "${TRITON}" ]; then bash ./install_triton.sh; fi
+#RUN if [ -n "${TRITON}" ]; then bash ./install_triton.sh; fi
 RUN rm install_triton.sh common_utils.sh triton.txt triton_version.txt
 
 # Install ccache/sccache (do this last, so we get priority in PATH)