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, 34 deletions

diff --git a/Lib/lib2to3/fixes/fix_asserts.py b/Lib/lib2to3/fixes/fix_asserts.py
deleted file mode 100644
index 5bcec88..0000000
--- a/Lib/lib2to3/fixes/fix_asserts.py
+++ /dev/null
@@ -1,34 +0,0 @@
-"""Fixer that replaces deprecated unittest method names."""
-
-# Author: Ezio Melotti
-
-from ..fixer_base import BaseFix
-from ..fixer_util import Name
-
-NAMES = dict(
-    assert_="assertTrue",
-    assertEquals="assertEqual",
-    assertNotEquals="assertNotEqual",
-    assertAlmostEquals="assertAlmostEqual",
-    assertNotAlmostEquals="assertNotAlmostEqual",
-    assertRegexpMatches="assertRegex",
-    assertRaisesRegexp="assertRaisesRegex",
-    failUnlessEqual="assertEqual",
-    failIfEqual="assertNotEqual",
-    failUnlessAlmostEqual="assertAlmostEqual",
-    failIfAlmostEqual="assertNotAlmostEqual",
-    failUnless="assertTrue",
-    failUnlessRaises="assertRaises",
-    failIf="assertFalse",
-)
-
-
-class FixAsserts(BaseFix):
-
-    PATTERN = """
-              power< any+ trailer< '.' meth=(%s)> any* >
-              """ % '|'.join(map(repr, NAMES))
-
-    def transform(self, node, results):
-        name = results["meth"][0]
-        name.replace(Name(NAMES[str(name)], prefix=name.prefix))