Bignum Mod: remove endianness from modulus

The external representation before included more than just endianness
(like reading in Mongtomery curve scalars or converting hashes to
numbers in a standard compliant way).

These are higher level concepts and are out of scope for Bignum and for
the modulus structure.

Signed-off-by: Janos Follath <janos.follath@arm.com>
diff --git a/tests/suites/test_suite_bignum_mod.data b/tests/suites/test_suite_bignum_mod.data
index ba7d577..ef9416e 100644
--- a/tests/suites/test_suite_bignum_mod.data
+++ b/tests/suites/test_suite_bignum_mod.data
@@ -1,29 +1,11 @@
-Test mbedtls_mpi_mod_setup #1 (Both representations invalid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_INVALID:MBEDTLS_MPI_MOD_REP_INVALID:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
+Test mbedtls_mpi_mod_setup #1 (Internal representation invalid)
+mpi_mod_setup:MBEDTLS_MPI_MOD_REP_INVALID:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
 
-Test mbedtls_mpi_mod_setup #2 (Internal representation invalid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_LE:MBEDTLS_MPI_MOD_REP_INVALID:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
+Test mbedtls_mpi_mod_setup #6 (Optimised reduction)
+mpi_mod_setup:MBEDTLS_MPI_MOD_REP_OPT_RED:0
 
-Test mbedtls_mpi_mod_setup #3 (Internal representation invalid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_BE:MBEDTLS_MPI_MOD_REP_INVALID:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
-
-Test mbedtls_mpi_mod_setup #4 (External representation invalid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_INVALID:MBEDTLS_MPI_MOD_REP_MONTGOMERY:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
-
-Test mbedtls_mpi_mod_setup #5 (External representation invalid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_INVALID:MBEDTLS_MPI_MOD_REP_OPT_RED:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
-
-Test mbedtls_mpi_mod_setup #6 (Both representations valid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_BE:MBEDTLS_MPI_MOD_REP_OPT_RED:0
-
-Test mbedtls_mpi_mod_setup #7 (Both representations valid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_BE:MBEDTLS_MPI_MOD_REP_MONTGOMERY:0
-
-Test mbedtls_mpi_mod_setup #8 (Both representations valid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_LE:MBEDTLS_MPI_MOD_REP_OPT_RED:0
-
-Test mbedtls_mpi_mod_setup #9 (Both representations valid)
-mpi_mod_setup:MBEDTLS_MPI_MOD_EXT_REP_LE:MBEDTLS_MPI_MOD_REP_MONTGOMERY:0
+Test mbedtls_mpi_mod_setup #7 (Montgomery representation)
+mpi_mod_setup:MBEDTLS_MPI_MOD_REP_MONTGOMERY:0
 
 # BEGIN MERGE SLOT 1