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/requirements.txt b/requirements.txt
index cde72ba..bfafa58 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +1,7 @@
-# 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.
-
-pbr!=2.1.0,>=2.0.0 # Apache-2.0
+pbr>=2.0.0 # Apache-2.0
oslo.config>=5.2.0 # Apache-2.0
oslo.log>=3.36.0 # Apache-2.0
-oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
+oslo.serialization>=2.18.0 # Apache-2.0
oslo.utils>=3.33.0 # Apache-2.0
fixtures>=3.0.0 # Apache-2.0/BSD
tempest>=27.0.0 # Apache-2.0