A simple python script for stripping out READ_PHONE_STATE in Unity 5.1 Android apps. Run from whereever your UNSIGNED built apk is as build.py <infile> <keystore file> <keystore password> <keystore alias>. Assumes that apktool, jarsigner, and zipalign are available from command. Tested on windows but should work on other platforms.

build.py

#!/usr/bin/env python

"""A simple python script for stripping out READ_PHONE_STATE in Unity 5.1 Android apps.
"""

import os
import sys
import argparse
import subprocess
import shutil

def main(arguments):

	parser = argparse.ArgumentParser(description=__doc__,
								 formatter_class=argparse.RawDescriptionHelpFormatter)
	parser.add_argument('infile', help="Input file")
	parser.add_argument('keystore', help="keystore file")
	parser.add_argument('kpw', help="keystore password")
	parser.add_argument('alias', help="keystore alias")
	
	args = vars(parser.parse_args(arguments))
	infile = args["infile"]
	processPath = os.path.splitext(args["infile"])[0]
	keystore = args["keystore"]
	kpw = args["kpw"]
	alias = args["alias"]
	
	if os.path.exists(processPath):
		shutil.rmtree(processPath)
	os.system("apktool d %s" % (infile))
	
	with open(("%s/AndroidManifest.xml" % processPath), 'r+') as content_file:
		content = content_file.read()
		content = content.replace('<uses-permission android:name="android.permission.READ_PHONE_STATE"/>', "\n")
		content_file.seek(0)
		content_file.write(content)
		content_file.truncate()
	
	tmpfile1 = "%s.tmp" % infile
	if os.path.exists(tmpfile1):
		os.remove(tmpfile1)
		
	os.system("apktool b %s -o %s" % (processPath, tmpfile1))
	shutil.rmtree(processPath)
	success = os.system("jarsigner -strict -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore %s -storepass %s %s %s" % (keystore, kpw, tmpfile1, alias))
	if success != 0:
		sys.exit("signing error")
		
	outfile = "%s_signed.apk" % processPath
	if os.path.exists(outfile):
		os.remove(outfile)
		
	os.system("zipalign -v 4 %s %s" % (tmpfile1, outfile))
	os.remove(tmpfile1)

if __name__ == '__main__':
	sys.exit(main(sys.argv[1:]))