Create ChangeOpQualifierRemove class

Change-Id: I9660f0c4975fbdbcf3cec1d60a9eb3fffc637ae3
Merge "Create ChangeOpQualifierRemove class"
Add further tests for ChangeOpQualifierRemove

Change-Id: I7c591ee554478010c2f6d3d29cc7c5d429b9d336