Remove old stats tools.

https://blueprints.launchpad.net/swift/+spec/remove-old-swift-stats-tools

Change-Id: Ibb57b3d71c7f18060d2d48a1d3754a7f1444624d

etc/stats.conf-sample

@@ -1,15 +0,0 @@
-# WARNING: The swift-stats-populate and swift-stats-report commands are being
-# replaced with swift-dispersion-populate and swift-dispersion-report; you
-# should switch to those before the next Swift release.
-[stats]
-auth_url = http://saio:8080/auth/v1.0
-auth_user = test:tester
-auth_key = testing
-# swift_dir = /etc/swift
-# dispersion_coverage = 1
-# container_put_count = 1000
-# object_put_count = 1000
-# big_container_count = 1000000
-# retries = 5
-# concurrency = 50
-# csv_output = /etc/swift/stats.csv