Remove old excludes
These are detected as errors since the clean up was done[1] in
the requirements repository.
[1] 314734e938f107cbd5ebcc7af4d9167c11347406
Change-Id: Ib566620c744a912400a4dbd9c019d92d3a337b90
diff --git a/test-requirements.txt b/test-requirements.txt
index 33a724b..0ce003e 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,6 +1,2 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
-
stestr>=1.0.0 # Apache-2.0
-coverage!=4.4,>=4.0 # Apache-2.0
+coverage>=4.0 # Apache-2.0