Remove version suffix

Remove the version suffix to generate 2.2.0 packages.

Author: martincostello

build/version.props

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <VersionPrefix>2.2.0</VersionPrefix>
-    <VersionSuffix>preview</VersionSuffix>
+    <VersionSuffix></VersionSuffix>
     <VersionSuffix Condition=" '$(VersionSuffix)' != '' AND '$(BuildNumber)' != '' ">$(VersionSuffix)-$(BuildNumber)</VersionSuffix>
   </PropertyGroup>