Remove upgrade steps for old, unsupported releases

Version 2.2 is now 3-years old and we are not going to maintain it.

CHANGES.rst

@@ -6,6 +6,13 @@ There's a frood who really knows where his towel is.
 2.13b4 (unreleased)
 ^^^^^^^^^^^^^^^^^^^
 
+.. Warning::
+    Upgrading from versions below 2.3 is no longer supported.
+    You must upgrade at least to version 2.3 before upgrading to this release.
+
+- Remove upgrade steps for old, unsupported releases.
+  [hvelarde]
+
 - Fix upgrade step when there are no plone.app.tiles recrods.
   [erral]
 

sc/social/like/setuphandlers.py

@@ -9,9 +9,6 @@ class HiddenProducts(object):
 
     def getNonInstallableProducts(self):
         return [
-            'sc.social.like.upgrades.v2000',
-            'sc.social.like.upgrades.v3000',
-            'sc.social.like.upgrades.v3010',
             'sc.social.like.upgrades.v3020',
         ]
 
@@ -22,8 +19,5 @@ class HiddenProfiles(object):
     def getNonInstallableProfiles(self):
         return [
             u'sc.social.like:uninstall',
-            u'sc.social.like.upgrades.v2000:default',
-            u'sc.social.like.upgrades.v3000:default',
-            u'sc.social.like.upgrades.v3010:default',
             u'sc.social.like.upgrades.v3020:default',
         ]

sc/social/like/upgrades/configure.zcml

@@ -1,8 +1,4 @@
 <configure xmlns="http://namespaces.zope.org/zope">
-
-    <include package=".v2000" />
-    <include package=".v3000" />
-    <include package=".v3010" />
     <include package=".v3020" />
     <include package=".v3030" />
     <include package=".v3040" />
@@ -14,5 +10,4 @@
     <include package=".v3046" />
     <include package=".v3047" />
     <include package=".v3048" />
-
 </configure>