gh-104780: Remove 2to3 program and lib2to3 module (#104781)

* Remove the Tools/scripts/2to3 script.
* Remove the Lib/test/test_lib2to3/ directory.
* Doc/tools/extensions/pyspecific.py: remove the "2to3fixer" object
  type.
* Makefile and PC/layout/main.py no longer compile lib2to3 grammar
  files.
* Update Makefile for 2to3 removal.

1 files changed, 0 insertions, 86 deletions

diff --git a/Lib/lib2to3/pgen2/token.py b/Lib/lib2to3/pgen2/token.py
deleted file mode 100755
index 2a55138e482..00000000000
--- a/Lib/lib2to3/pgen2/token.py
+++ /dev/null
@@ -1,86 +0,0 @@
-#! /usr/bin/env python3
-
-"""Token constants (from "token.h")."""
-
-#  Taken from Python (r53757) and modified to include some tokens
-#   originally monkeypatched in by pgen2.tokenize
-
-#--start constants--
-ENDMARKER = 0
-NAME = 1
-NUMBER = 2
-STRING = 3
-NEWLINE = 4
-INDENT = 5
-DEDENT = 6
-LPAR = 7
-RPAR = 8
-LSQB = 9
-RSQB = 10
-COLON = 11
-COMMA = 12
-SEMI = 13
-PLUS = 14
-MINUS = 15
-STAR = 16
-SLASH = 17
-VBAR = 18
-AMPER = 19
-LESS = 20
-GREATER = 21
-EQUAL = 22
-DOT = 23
-PERCENT = 24
-BACKQUOTE = 25
-LBRACE = 26
-RBRACE = 27
-EQEQUAL = 28
-NOTEQUAL = 29
-LESSEQUAL = 30
-GREATEREQUAL = 31
-TILDE = 32
-CIRCUMFLEX = 33
-LEFTSHIFT = 34
-RIGHTSHIFT = 35
-DOUBLESTAR = 36
-PLUSEQUAL = 37
-MINEQUAL = 38
-STAREQUAL = 39
-SLASHEQUAL = 40
-PERCENTEQUAL = 41
-AMPEREQUAL = 42
-VBAREQUAL = 43
-CIRCUMFLEXEQUAL = 44
-LEFTSHIFTEQUAL = 45
-RIGHTSHIFTEQUAL = 46
-DOUBLESTAREQUAL = 47
-DOUBLESLASH = 48
-DOUBLESLASHEQUAL = 49
-AT = 50
-ATEQUAL = 51
-OP = 52
-COMMENT = 53
-NL = 54
-RARROW = 55
-AWAIT = 56
-ASYNC = 57
-ERRORTOKEN = 58
-COLONEQUAL = 59
-N_TOKENS = 60
-NT_OFFSET = 256
-#--end constants--
-
-tok_name = {}
-for _name, _value in list(globals().items()):
-    if isinstance(_value, int):
-        tok_name[_value] = _name
-
-
-def ISTERMINAL(x):
-    return x < NT_OFFSET
-
-def ISNONTERMINAL(x):
-    return x >= NT_OFFSET
-
-def ISEOF(x):
-    return x == ENDMARKER