Cleanup: remove workaround for Python 3.7x crashing with libedit

This removes workaround for T43491. It's no longer needed as
Python 3.9x supports libedit as an alternative to readline
on all platforms.

release/scripts/modules/console_python.py

@@ -229,8 +229,6 @@ execute.hooks = []
 
 
 def autocomplete(context):
-    _readline_bypass()
-
     from console import intellisense
 
     sc = context.space_data
@@ -358,14 +356,3 @@ def banner(context):
     sc.prompt = PROMPT
 
     return {'FINISHED'}
-
-
-# workaround for readline crashing, see: T43491
-def _readline_bypass():
-    if "rlcompleter" in sys.modules or "readline" in sys.modules:
-        return
-
-    # prevent 'rlcompleter' from loading the real 'readline' module.
-    sys.modules["readline"] = None
-    import rlcompleter
-    del sys.modules["readline"]