Update ci.yml

Author: cheneym2

.github/workflows/ci.yml

@@ -156,20 +156,17 @@ jobs:
           export SLANG_USE_SPV_SOURCE_LANGUAGE_UNKNOWN=1
           if [[ "${{matrix.full-gpu-tests}}" == "true" ]]; then
             "$bin_dir/slang-test" \
-              -use-test-server \
               -server-count 8 \
               -category ${{ matrix.test-category }} \
               -api all-cpu \
               -expected-failure-list tests/expected-failure-github.txt
           elif [[ "${{matrix.has-gpu}}" == "true" ]]; then
             "$bin_dir/slang-test" \
-              -use-test-server \
               -category ${{ matrix.test-category }} \
               -api all-dx12 \
               -expected-failure-list tests/expected-failure-github.txt
           else
             "$bin_dir/slang-test" \
-              -use-test-server \
               -category ${{ matrix.test-category }} \
               -api all-dx12 \
               -expected-failure-list tests/expected-failure-github.txt \