Remove obsolete comment from depends.py

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/tests/scripts/depends.py b/tests/scripts/depends.py
index 5714f9a..52ca412 100755
--- a/tests/scripts/depends.py
+++ b/tests/scripts/depends.py
@@ -419,8 +419,7 @@
                                  exclude=r'MBEDTLS_(MD|RIPEMD|SHA1_)' \
                                           '|MBEDTLS_SHA224_' \
                                           '|MBEDTLS_SHA384_'),
-            # Key exchange types. Only build the library and the sample
-            # programs.
+            # Key exchange types.
             'kex': ExclusiveDomain(key_exchange_symbols, build_and_test),
             'pkalgs': ComplementaryDomain(['MBEDTLS_ECDSA_C',
                                            'MBEDTLS_ECP_C',