add orphanet x-ref (#7476)

* add orphanet x-ref

Closes #7361

* Update mondo-edit.obo

src/ontology/mondo-edit.obo

@@ -8647,6 +8647,8 @@ def: "An amino acid metabolic disorder characterized by impairment of the GABA c
 subset: inferred_rare
 subset: rare
 xref: DOID:0060176 {source="MONDO:equivalentTo"}
+xref: GARD:18955 {source="MONDO:equivalentTo", source="Orphanet:79175"}
+xref: Orphanet:79175 {source="MONDO:equivalentTo"}
 is_a: MONDO:0004736 {source="DOID:0060176", source="MONDO:Entailed"} ! inborn disorder of amino acid metabolism
 intersection_of: MONDO:0004736 ! inborn disorder of amino acid metabolism
 intersection_of: disease_has_basis_in_disruption_of GO:0009450 ! gamma-aminobutyric acid catabolic process
@@ -415193,15 +415195,14 @@ synonym: "disorder of gamma-aminobutyric acid metabolism" RELATED [Orphanet:7917
 synonym: "inborn error of gamma-aminobutyric acid metabolic process" EXACT [MONDO:patterns/inborn_metabolic]
 synonym: "inborn gamma-aminobutyric acid metabolic process disorder" EXACT []
 synonym: "rare inborn error of gamma-aminobutyric acid metabolic process" EXACT [MONDO:patterns/inborn_metabolic]
-xref: GARD:18955 {source="MONDO:obsoleteEquivalent", source="Orphanet:79175"}
 xref: ICD10CM:E72.8 {source="Orphanet:79175", source="Orphanet:79175/attributed", source="Orphanet:79175/ntbt"}
-xref: Orphanet:79175 {source="MONDO:obsoleteEquivalent"}
 xref: UMLS:CN227591 {source="MONDO:obsoleteEquivalent"}
 property_value: IAO:0000231 OMO:0001000 {source="MONDO:excludeGrouping"}
 property_value: IAO:0000233 "https://github.com/monarch-initiative/mondo/issues/5114" xsd:anyURI
 property_value: IAO:0000233 "https://github.com/monarch-initiative/mondo/issues/6750" xsd:anyURI
 property_value: IAO:0000233 "https://github.com/monarch-initiative/mondo/issues/6877" xsd:anyURI
 is_obsolete: true
+replaced_by: MONDO:0000698
 
 [Term]
 id: MONDO:0019225