remove old README files that are now redundant

As part of cleaning up the tree, remove old README files from the
tree.

Change-Id: I3a321d444664a337aa78546b23e59674585c5fed
diff --git a/etc/README.txt b/etc/README.txt
deleted file mode 100644
index c7e5e6e..0000000
--- a/etc/README.txt
+++ /dev/null
@@ -1 +0,0 @@
-Copy config.ini.sample to config.ini, and update it to reflect your environment.
diff --git a/etc/TEMPEST_README.txt b/etc/TEMPEST_README.txt
deleted file mode 100644
index 50fa688..0000000
--- a/etc/TEMPEST_README.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-To run:
--rename the /etc/tempest.conf.sample file to tempest.conf
--Set the fields in the file to values relevant to your system
--Set the "authentication" value (basic or keystone_v2 currently supported)
--From the root directory of the project, run "./run_tests.sh" this will
-create the venv to install the project dependencies and run nosetests tempest
-to run all the tests