Revert "Python 3.11: Enhanced error locations in tracebacks (#2771)" (#…

…2839)

This reverts commit aa36730.

It is no longer required on Python 3.11.0b4 and later; see
#2771 (comment)
and
https://mail.python.org/archives/list/python-dev@python.org/message/73YP4RS4QOJXUS63BQZVLTQHK3OP3L3H/.

Specifically, the ^^^^… are now omitted when they would “underline” the
whole preceding line, which is the case here, so the expected output is
the same as for Python 3.10 and earlier.

opentelemetry-sdk/tests/trace/test_trace.py

@@ -15,7 +15,6 @@
 # pylint: disable=too-many-lines
 import shutil
 import subprocess
-import sys
 import unittest
 from importlib import reload
 from logging import ERROR, WARNING
@@ -1187,13 +1186,6 @@ def test_record_exception_context_manager(self):
             stacktrace = """in test_record_exception_context_manager
     raise RuntimeError("example error")
 RuntimeError: example error"""
-            if sys.version_info >= (3, 11):
-                # https://docs.python.org/3.11/whatsnew/3.11.html#enhanced-error-locations-in-tracebacks
-                tracelines = stacktrace.splitlines()
-                tracelines.insert(
-                    -1, "    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^"
-                )
-                stacktrace = "\n".join(tracelines)
             self.assertIn(stacktrace, event.attributes["exception.stacktrace"])
 
         try: