This reverts commit 1ad37309e4f17d73c2f22c3ff4bffe2523abe17c.
Conflicts:
* tests/scripts/test-ref-configs.pl:
* config-ccm-psk-tls1_2.h: there has been an addition of
"config-symmetric-only.h" at the place where the configurations
that are added back were removed. Keep this configuration.
Upstream mbedtls maintains the default configuration in
include/mbedtls/config.h. We maintain the default configuration in
configs/config-default.h, and our PSA-specific configuration in
include/mbedtls/config.h. This means, each time we update Mbed TLS, we need
to update the default configuration file (configs/config-default.h)
manually using the copy from mbedtls.
