ctypedescs: remove spurious APR types from type map

These seem to be custom types from the APR library, which don't belong in a generic type map.

I descended git blame, but these lines predate the easily viewable history.
Given commit 3d2d980, I'd guess APR may have been @davidjamesca's use case.

src/ctypesgen/ctypedescs.py

@@ -64,9 +64,7 @@
     ("int", True, 2): "c_longlong",
     ("int", False, 2): "c_ulonglong",
     ("size_t", True, 0): "c_size_t",
-    ("apr_int64_t", True, 0): "c_int64",
     ("off64_t", True, 0): "c_int64",
-    ("apr_uint64_t", False, 0): "c_uint64",
     ("wchar_t", True, 0): "c_wchar",
     ("ptrdiff_t", True, 0): "c_ssize_t",
     ("ssize_t", True, 0): "c_ssize_t",