Revert "Skip interpreter discovery for network OSs(#74012)"

This reverts commit 173d0a8de7.

changelogs/fragments/tweaking_interpreter_discovery.yaml

@@ -1,2 +0,0 @@
-bugfixes:
-    - interpreter discovery is now handling special (ansible_network_os) cases in less noisy ways.

lib/ansible/executor/task_executor.py

@@ -539,12 +539,6 @@ class TaskExecutor:
         plugin_vars = self._set_connection_options(cvars, templar)
         templar.available_variables = orig_vars
 
-        # TODO: eventually remove this block as this should be a 'consequence' of 'forced_local' modules
-        # special handling for python interpreter for network_os, default to ansible python unless overriden
-        if 'ansible_network_os' in cvars and 'ansible_python_interpreter' not in cvars:
-            # this also avoids 'python discovery'
-            cvars['ansible_python_interpreter'] = sys.executable
-
         # get handler
         self._handler = self._get_action_handler(connection=self._connection, templar=templar)