Revert "Use ruff for Expr unparsing (RustPython#6124)"

This reverts commit 0fb7d0f.

Author: ShaharNaveh

Cargo.lock

@@ -159,7 +159,6 @@ rustpython-wtf8 = { path = "wtf8", version = "0.4.0" }
 rustpython-doc = { git = "https://github.com/RustPython/__doc__", tag = "0.3.0", version = "0.3.0" }
 
 ruff_python_parser = { git = "https://github.com/astral-sh/ruff.git", tag = "0.14.1" }
-ruff_python_codegen = { git = "https://github.com/astral-sh/ruff.git", tag = "0.14.1" }
 ruff_python_ast = { git = "https://github.com/astral-sh/ruff.git", tag = "0.14.1" }
 ruff_text_size = { git = "https://github.com/astral-sh/ruff.git", tag = "0.14.1" }
 ruff_source_file = { git = "https://github.com/astral-sh/ruff.git", tag = "0.14.1" }

Cargo.toml

@@ -0,0 +1,10 @@
+"""This is a test"""
+from __future__ import nested_scopes
+from __future__ import rested_snopes
+
+def f(x):
+    def g(y):
+        return x + y
+    return g
+
+result = f(2)(4)

Lib/test/test_future_stmt/badsyntax_future.py renamed to Lib/test/test_future_stmt/badsyntax_future10.py

@@ -0,0 +1,10 @@
+"""This is a test"""
+import __future__
+from __future__ import nested_scopes
+
+def f(x):
+    def g(y):
+        return x + y
+    return g
+
+result = f(2)(4)

Lib/test/test_future_stmt/badsyntax_future3.py

@@ -0,0 +1,12 @@
+"""This is a test"""
+from __future__ import nested_scopes
+import foo
+from __future__ import nested_scopes
+
+
+def f(x):
+    def g(y):
+        return x + y
+    return g
+
+result = f(2)(4)

Lib/test/test_future_stmt/badsyntax_future4.py

@@ -0,0 +1,10 @@
+"""This is a test"""
+"this isn't a doc string"
+from __future__ import nested_scopes
+
+def f(x):
+    def g(y):
+        return x + y
+    return g
+
+result = f(2)(4)

Lib/test/test_future_stmt/badsyntax_future5.py

@@ -0,0 +1,11 @@
+"""This is a test"""
+
+from __future__ import nested_scopes; import string; from __future__ import \
+     nested_scopes
+
+def f(x):
+    def g(y):
+        return x + y
+    return g
+
+result = f(2)(4)

Lib/test/test_future_stmt/badsyntax_future6.py

@@ -0,0 +1,10 @@
+"""This is a test"""
+
+from __future__ import *
+
+def f(x):
+    def g(y):
+        return x + y
+    return g
+
+print(f(2)(4))

Lib/test/test_future_stmt/badsyntax_future7.py

@@ -0,0 +1,10 @@
+"""This is a test"""
+
+from __future__ import nested_scopes, braces
+
+def f(x):
+    def g(y):
+        return x + y
+    return g
+
+print(f(2)(4))