Azure: Remove validate stage debug prints
Azure: Remove validate stage debug prints

Validation errors hopefully resolved in #3556.

lucienfostier/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,boberfly/gaffer,hradec/gaffer,andrewkaufman/gaffer,boberfly/gaffer,lucienfostier/gaffer,ImageEngine/gaffer,boberfly/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,appleseedhq/gaffer,appleseedhq/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,lucienfostier/gaffer,GafferHQ/gaffer,hradec/gaffer,hradec/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,boberfly/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,appleseedhq/gaffer,hradec/gaffer,hradec/gaffer