Remove xrefs to HsapDv/MmusDv/OlatDv.

The SSLSO project is now providing mappings to Uberon in the form of a
SSSOM mapping set. The xrefs maintained in Uberon are redundant with
those mappings, and they seem to be less maintained (several Uberon
xrefs currently point to obsoleted HsapDv or MmusDv terms).

We remove those cross-references entirely, so that SSLSO becomes the
sole source of truth for the mappings between Uberon and
HsapDv/MmusDv/OlatDv (as it already is for all the other *Dv
ontologies).

src/ontology/uberon-edit.obo

@@ -201,12 +201,9 @@ treat-xrefs-as-reverse-genus-differentia: FBdv part_of NCBITaxon:7227
 treat-xrefs-as-reverse-genus-differentia: FMA part_of NCBITaxon:9606
 treat-xrefs-as-reverse-genus-differentia: HAO part_of NCBITaxon:7399
 treat-xrefs-as-reverse-genus-differentia: HBA part_of NCBITaxon:9606
-treat-xrefs-as-reverse-genus-differentia: HsapDv part_of NCBITaxon:9606
 treat-xrefs-as-reverse-genus-differentia: KUPO part_of NCBITaxon:9606
 treat-xrefs-as-reverse-genus-differentia: MA part_of NCBITaxon:10090
 treat-xrefs-as-reverse-genus-differentia: MFO part_of NCBITaxon:8089
-treat-xrefs-as-reverse-genus-differentia: MmusDv part_of NCBITaxon:10090
-treat-xrefs-as-reverse-genus-differentia: OlatDv part_of NCBITaxon:8089
 treat-xrefs-as-reverse-genus-differentia: PBA part_of NCBITaxon:9443
 treat-xrefs-as-reverse-genus-differentia: SPD part_of NCBITaxon:6893
 treat-xrefs-as-reverse-genus-differentia: TADS part_of NCBITaxon:6939
@@ -1974,8 +1971,6 @@ xref: BilaDO:0000002
 xref: EV:0300001
 xref: FBdv:00005289
 xref: FMA:72652
-xref: HsapDv:0000002
-xref: MmusDv:0000002
 xref: OGES:000000
 xref: OGES:000022
 xref: SCTID:296280003
@@ -2749,8 +2744,6 @@ synonym: "entire lifespan" EXACT []
 synonym: "life" EXACT []
 synonym: "lifespan" EXACT []
 xref: FBdv:00000000
-xref: HsapDv:0000001
-xref: MmusDv:0000001
 xref: ncithesaurus:Life
 xref: OGES:000011
 is_a: UBERON:0000000 ! processual entity
@@ -2775,11 +2768,8 @@ xref: BILS:0000105
 xref: EFO:0000399
 xref: FBdv:00007012
 xref: FMA:24120
-xref: HsapDv:0000000
 xref: MESH:D008018
-xref: MmusDv:0000000
 xref: ncithesaurus:Developmental_Stage
-xref: OlatDv:0000010
 xref: PdumDv:0000090
 xref: WBls:0000002
 xref: XAO:1000000
@@ -2833,7 +2823,6 @@ xref: BILS:0000107
 xref: EFO:0001290
 xref: FBdv:00000054
 xref: MESH:D002970
-xref: MmusDv:0000004
 xref: OGES:000015
 xref: OGES:000020
 xref: PdumDv:0000200
@@ -2853,8 +2842,6 @@ subset: efo_slim
 xref: BilaDO:0000007
 xref: BILS:0000108
 xref: EFO:0001282
-xref: HsapDv:0000006
-xref: MmusDv:0000007
 xref: OGES:000003
 xref: OGES:000016
 xref: OGES:000021
@@ -2883,8 +2870,6 @@ xref: BilaDO:0000008
 xref: BILS:0000109
 xref: EFO:0001296
 xref: FBdv:00005317
-xref: HsapDv:0000010
-xref: MmusDv:0000013
 xref: OGES:000004
 xref: OGES:000019
 xref: WBls:0000010
@@ -2902,8 +2887,6 @@ name: neurula stage
 def: "Staged defined by the formation of a tube from the flat layer of ectodermal cells known as the neural plate. This will give rise to the central nervous system." [GO:0001841]
 xref: BilaDO:0000009
 xref: BILS:0000110
-xref: HsapDv:0000012
-xref: MmusDv:0000017
 xref: XAO:1000006
 is_a: UBERON:0000105 ! life cycle stage
 relationship: dubious_for_taxon NCBITaxon:7955 ! Danio rerio
@@ -2922,8 +2905,6 @@ def: "A stage at which the ectoderm, endoderm, and mesoderm develop into the int
 synonym: "segmentation stage" RELATED []
 xref: BilaDO:0000010
 xref: BILS:0000111
-xref: HsapDv:0000015
-xref: MmusDv:0000018
 xref: OGES:000005
 xref: OGES:000032
 xref: Wikipedia:Organogenesis
@@ -2946,7 +2927,6 @@ xref: BILS:0000112
 xref: BTO:0002168
 xref: EFO:0001300
 xref: EV:0300051
-xref: MmusDv:0000043
 xref: OGES:000009
 xref: XAO:1000010
 xref: XtroDO:0000083
@@ -2967,7 +2947,6 @@ xref: BILS:0000113
 xref: EV:0300064
 xref: EV:0300070
 xref: MIAA:0000403
-xref: MmusDv:0000110
 xref: OGES:000026
 xref: OGES:000027
 xref: XAO:1000093
@@ -119552,7 +119531,6 @@ xref: EVM:2990031
 xref: FBdv:00005333
 xref: FMA:63631
 xref: MIAA:0000399
-xref: MmusDv:0000031
 xref: OGES:000023
 xref: SCTID:367619004
 is_a: UBERON:0000105 ! life cycle stage
@@ -119579,10 +119557,8 @@ synonym: "puggle" NARROW SENSU [NCBITaxon:189497]
 synonym: "puggle stage" NARROW SENSU [NCBITaxon:189497]
 xref: BTO:0001762
 xref: EV:0300037
-xref: HsapDv:0000082
 xref: http://neurolex.org/wiki/Category\:Infant_organism
 xref: http://neurolex.org/wiki/Category\:Newborn_organism
-xref: MmusDv:0000096
 xref: NIF_Organism:birnlex_695
 xref: OGES:000025
 xref: Wikipedia:Infant
@@ -119600,7 +119576,6 @@ synonym: "elderly stage" RELATED [EV:0300123]
 synonym: "geriatric" RELATED [EV:0300123]
 synonym: "geriatric stage" RELATED [EV:0300123]
 xref: EV:0300123
-xref: HsapDv:0000093
 xref: NCIT:C16268
 xref: NIF_Organism:birnlex_691
 xref: UMLS:C0001792 {source="ncithesaurus:Elderly"}