revert the addition of _pickle because it was causing havok with 64-bit
diff --git a/Lib/pickletools.py b/Lib/pickletools.py
index 1dd45da..7bc9c67 100644
--- a/Lib/pickletools.py
+++ b/Lib/pickletools.py
@@ -2079,12 +2079,11 @@
    70: t        TUPLE      (MARK at 49)
    71: p    PUT        5
    74: R    REDUCE
-   75: p    PUT        6
-   78: V    UNICODE    'def'
-   83: p    PUT        7
-   86: s    SETITEM
-   87: a    APPEND
-   88: .    STOP
+   75: V    UNICODE    'def'
+   80: p    PUT        6
+   83: s    SETITEM
+   84: a    APPEND
+   85: .    STOP
 highest protocol among opcodes = 0
 
 Try again with a "binary" pickle.
@@ -2116,12 +2115,11 @@
    49: t            TUPLE      (MARK at 37)
    50: q        BINPUT     5
    52: R        REDUCE
-   53: q        BINPUT     6
-   55: X        BINUNICODE 'def'
-   63: q        BINPUT     7
-   65: s        SETITEM
-   66: e        APPENDS    (MARK at 3)
-   67: .    STOP
+   53: X        BINUNICODE 'def'
+   61: q        BINPUT     6
+   63: s        SETITEM
+   64: e        APPENDS    (MARK at 3)
+   65: .    STOP
 highest protocol among opcodes = 1
 
 Exercise the INST/OBJ/BUILD family.