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 3633190..b8bcfd2 100755
--- a/tests/scripts/depends.py
+++ b/tests/scripts/depends.py
@@ -433,8 +433,7 @@
             'hashes': DualDomain(hash_symbols, build_and_test,
                                  exclude=r'MBEDTLS_(MD|RIPEMD|SHA1_)'\
                                           '|!MBEDTLS_*_NO_SHA'),
-            # 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',