Disables backtrace config from basic-build-test.sh
Disables backtrace config from basic-build-test.sh

The configuration MBEDTLS_MEMORY_BACKTRACE is intended for debug and
is not necessary for test coverage. Because it causes timing problems
in some tests the configuration has been removed as it's not present in
equivalent tests in the all.sh test script.

Mbed-TLS/mbedtls,NXPmicro/mbedtls,NXPmicro/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,ARMmbed/mbedtls,NXPmicro/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,NXPmicro/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls