Remove std_err_override

This hasn't been used in many moons.

python_apps/std_err_override/setup.py

@@ -1,20 +0,0 @@
-from setuptools import setup
-from subprocess import call
-import sys
-import os
-
-script_path = os.path.dirname(os.path.realpath(__file__))
-print script_path
-os.chdir(script_path)
-
-setup(name='std_err_override',
-      version='1.0',
-      description='Airtime Log Writer',
-      url='http://github.com/sourcefabric/Airtime',
-      author='sourcefabric',
-      license='AGPLv3',
-      packages=['std_err_override'],
-      scripts=[],
-      install_requires=[],
-      zip_safe=False,
-      data_files=[])

python_apps/std_err_override/std_err_override/LogWriter.py

@@ -1,11 +0,0 @@
-import sys
-
-class LogWriter():
-    def __init__(self, logger):
-        self.logger = logger
-    
-    def write(self, txt):
-        self.logger.error(txt)
-
-def override_std_err(logger):
-    sys.stderr = LogWriter(logger)