Remove versions for required packages

Requirement versions were set in the first place to limit the
buginess. However, after some time it appears that it made more
harm than good, as discussed in:
https://review.openstack.org/#/c/388003/

In this commit we remove the versions for the requirements, except
for the following:
- Nova
- synergy-service

In the future, if a specific dependency version is causing some issue
we should reintroduce the version for this dependency to block the
unstable version.

Sem-Ver: bugfix
Change-Id: If65e670a18a495a5c3f5c08c80b6b1d3abec5747

packaging/rpm/python-synergy-scheduler-manager.spec

@@ -12,13 +12,13 @@ BuildArch:     noarch
 BuildRequires: python-devel
 BuildRequires: python-setuptools
 Requires:      python-nova >= 12.0
-Requires:      python-oslo-config >= 2.4
-Requires:      python-oslo-messaging >= 2.5
-Requires:      python-oslo-serialization >= 1.9
-Requires:      python-oslo-versionedobjects >= 0.10
-Requires:      python-pbr >= 1.8
-Requires:      python-requests >= 2.10
-Requires:      python-sqlalchemy >= 1.0
+Requires:      python-oslo-config
+Requires:      python-oslo-messaging
+Requires:      python-oslo-serialization
+Requires:      python-oslo-versionedobjects
+Requires:      python-pbr
+Requires:      python-requests
+Requires:      python-sqlalchemy
 Requires:      python-synergy-service >= 1.1
 
 

requirements.txt

@@ -2,12 +2,12 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-pbr>=1.8,<1.9
+pbr
 
-oslo.config>=2.4,<2.5
-oslo.messaging>=2.5,<2.6
-oslo.serialization>=1.9,<1.10
-oslo.versionedobjects>=0.10,<0.11
-requests>=2.0.0,<3.0.0  # availability: 2.10.0 on CentOS 7, 2.7.0 on Ubuntu 14.04
-sqlalchemy>=1.0,<1.1
+oslo.config
+oslo.messaging
+oslo.serialization
+oslo.versionedobjects
+requests
+sqlalchemy
 synergy-service>=1.1,<1.2

setup.py

@@ -23,5 +23,5 @@ except ImportError:
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=1.8', 'setuptools'],
+    setup_requires=['pbr', 'setuptools'],
     pbr=True)