Although we build the test app in SGX simulation mode which does not
require hardware SGX support, SGX SSL fails to initialize on non-Intel
CPUs. This is unexpected (and inconsistent with the `sgx-sdk` sample
code we run in the `installCheckPhase`) and subject to an upstream
issue: https://github.com/intel/intel-sgx-ssl/issues/113
Revert this commit as soon as the issue is resolved by Intel.