Fix NdrCString not accepting strings in python3

tests/test_apisetmap.py

@@ -20,7 +20,7 @@ def dumped_apisetmap_base_and_version(request):
     ctypes_data = ctypes.c_buffer(data)
     yield ctypes.addressof(ctypes_data), version
 
-KNOWN_APISETMAP_PREFIX = ["api-", "ext-", "MS-Win-", "SchemaExt-"]
+KNOWN_APISETMAP_PREFIX = ["api-", "ext-", "MS-Win-"]
 
 def verify_apisetmap_parsing(apisetmap_base, version=None):
     if version is not None:

tests/test_ndr.py

@@ -58,11 +58,6 @@ target = "APPP\x01\x02\x03\x04\x05\x06\x07\x08\x44PPP\x09\x0a\x0b\x0c\x0d\x0e\x0
 NDR_PACK_TEST_CASE = [
     # Simple case
     (ndr.make_structure([ndr.NdrLong, ndr.NdrLong]), (2, 2), b"\x02\x00\x00\x00\x02\x00\x00\x00"),
-    # String case, test packing works + \x00 is added if not present in string
-    (ndr.NdrCString, "Hello", b"\x06\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00Hello\x00PP"),
-    (ndr.NdrCString, "Hello\x00", b"\x06\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00Hello\x00PP"),
-    (ndr.NdrWString, "Hello", b"\x06\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00H\x00e\x00l\x00l\x00o\x00\x00\x00"),
-    (ndr.NdrWString, "Hello\x00", b"\x06\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00H\x00e\x00l\x00l\x00o\x00\x00\x00"),
     # Test GUID packing
     (ndr.NdrGuid, gdef.GUID.from_string("42424242-42424242-4242-4242-424242424242"), b"BBBBBBBBBBBBBBBB"),
     # Test CtxHandle packing