[TEST] Remove script that references previously removed content. (#2481)

Jenkinsfile

@@ -220,7 +220,6 @@ stage('Integration Test') {
         unpack_lib('gpu', tvm_multilib)
         timeout(time: max_time, unit: 'MINUTES') {
           sh "${docker_run} tvmai/ci-gpu ./tests/scripts/task_python_topi.sh"
-          sh "${docker_run} tvmai/ci-gpu ./tests/scripts/task_cpp_topi.sh"
         }
       }
     }

tests/travis/run_test.sh

@@ -32,7 +32,6 @@ fi
 if [ ${TASK} == "cpp_test" ] || [ ${TASK} == "all_test" ]; then
     make -f dmlc-core/scripts/packages.mk gtest
     ./tests/scripts/task_cpp_unittest.sh || exit -1
-    ./tests/scripts/task_cpp_topi.sh || exit -1
 fi
 
 if [ ${TASK} == "python_test" ] || [ ${TASK} == "all_test" ]; then