tests/basic: Make various tests skippable.

tests/basics/bytes_construct.py

@@ -1,16 +1,10 @@
 # test construction of bytes from different objects
 
-from array import array
-
 # tuple, list, bytearray
 print(bytes((1, 2)))
 print(bytes([1, 2]))
 print(bytes(bytearray(4)))
 
-# arrays
-print(bytes(array('b', [1, 2])))
-print(bytes(array('h', [0x101, 0x202])))
-
 # constructor value out of range
 try:
     bytes([-1])