BUG-1199 : Small adjustments to stateful07 interop
- removed R bit in LSP in remove-lsp
- explicit approval of empty ERO object

Conflicts:
	pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/object/AbstractEROWithSubobjectsParser.java
	pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/object/PCEPExplicitRouteObjectParser.java

Change-Id: Iaf7c9e6371ca8573ea241242fae548a05694b68a
Signed-off-by: Dana Kutenicsova <dkutenic@cisco.com>