230630.180812.CST restore stress_test_matlab.yml

Former-commit-id: 9aeb64ecc37d45d7fbcaec5b615b646890fd75ad

Author: zaikunzhang

.github/workflows/stress_test_matlab.yml

@@ -123,7 +123,6 @@ jobs:
             else
                 options.precision = 'quadruple';
             end
-            options.precision = 'quadruple'
             stress('${{ matrix.solver }}', options);