[ADDENDUM] [YUNIKORN-2116] Track user/group events

Change *_LIMITSET constants to just *_LIMIT. Remove UG_APP_UNLINK.
diff --git a/lib/go/si/si.pb.go b/lib/go/si/si.pb.go
index b0e34dd..3d4714e 100644
--- a/lib/go/si/si.pb.go
+++ b/lib/go/si/si.pb.go
@@ -380,12 +380,11 @@
 	EventRecord_ALLOC_TIMEOUT       EventRecord_ChangeDetail = 502 // Allocation cancelled due to timeout
 	EventRecord_ALLOC_REPLACED      EventRecord_ChangeDetail = 503 // Allocation replacement (placeholder)
 	EventRecord_ALLOC_NODEREMOVED   EventRecord_ChangeDetail = 504 // Allocation cancelled, node removal
-	EventRecord_UG_USER_LIMITSET    EventRecord_ChangeDetail = 600 // Limit is configured for a given user
-	EventRecord_UG_GROUP_LIMITSET   EventRecord_ChangeDetail = 601 // Limit is configured for a given group
-	EventRecord_UG_APP_LINK         EventRecord_ChangeDetail = 602 // Linkage is created between an application and a group
-	EventRecord_UG_APP_UNLINK       EventRecord_ChangeDetail = 603 // Unlinking an application and a group
-	EventRecord_UG_USER_RESOURCE    EventRecord_ChangeDetail = 604 // Resource usage updated for a user
-	EventRecord_UG_GROUP_RESOURCE   EventRecord_ChangeDetail = 605 // Resource usage updated for a group
+	EventRecord_UG_USER_LIMIT       EventRecord_ChangeDetail = 600 // Limit is changed (set/unset) for a given user
+	EventRecord_UG_GROUP_LIMIT      EventRecord_ChangeDetail = 601 // Limit is changed (set/unset) for a given group
+	EventRecord_UG_APP_LINK         EventRecord_ChangeDetail = 602 // Linkage is changed (created/removed) between an application and a group
+	EventRecord_UG_USER_RESOURCE    EventRecord_ChangeDetail = 603 // Resource usage updated for a user
+	EventRecord_UG_GROUP_RESOURCE   EventRecord_ChangeDetail = 604 // Resource usage updated for a group
 )
 
 // Enum value maps for EventRecord_ChangeDetail.
@@ -431,12 +430,11 @@
 		502: "ALLOC_TIMEOUT",
 		503: "ALLOC_REPLACED",
 		504: "ALLOC_NODEREMOVED",
-		600: "UG_USER_LIMITSET",
-		601: "UG_GROUP_LIMITSET",
+		600: "UG_USER_LIMIT",
+		601: "UG_GROUP_LIMIT",
 		602: "UG_APP_LINK",
-		603: "UG_APP_UNLINK",
-		604: "UG_USER_RESOURCE",
-		605: "UG_GROUP_RESOURCE",
+		603: "UG_USER_RESOURCE",
+		604: "UG_GROUP_RESOURCE",
 	}
 	EventRecord_ChangeDetail_value = map[string]int32{
 		"DETAILS_NONE":        0,
@@ -479,12 +477,11 @@
 		"ALLOC_TIMEOUT":       502,
 		"ALLOC_REPLACED":      503,
 		"ALLOC_NODEREMOVED":   504,
-		"UG_USER_LIMITSET":    600,
-		"UG_GROUP_LIMITSET":   601,
+		"UG_USER_LIMIT":       600,
+		"UG_GROUP_LIMIT":      601,
 		"UG_APP_LINK":         602,
-		"UG_APP_UNLINK":       603,
-		"UG_USER_RESOURCE":    604,
-		"UG_GROUP_RESOURCE":   605,
+		"UG_USER_RESOURCE":    603,
+		"UG_GROUP_RESOURCE":   604,
 	}
 )
 
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+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/scheduler-interface-spec.md b/scheduler-interface-spec.md
index 75f9797..cd899fa 100644
--- a/scheduler-interface-spec.md
+++ b/scheduler-interface-spec.md
@@ -931,12 +931,11 @@
      ALLOC_REPLACED     = 503;  // Allocation replacement (placeholder)
      ALLOC_NODEREMOVED  = 504;  // Allocation cancelled, node removal
 
-     UG_USER_LIMITSET   = 600;  // Limit is configured for a given user
-     UG_GROUP_LIMITSET  = 601;  // Limit is configured for a given group
-     UG_APP_LINK        = 602;  // Linkage is created between an application and a group
-     UG_APP_UNLINK      = 603;  // Unlinking an application and a group
-     UG_USER_RESOURCE   = 604;  // Resource usage updated for a user
-     UG_GROUP_RESOURCE  = 605;  // Resource usage updated for a group
+     UG_USER_LIMIT      = 600;  // Limit is changed (set/unset) for a given user
+     UG_GROUP_LIMIT     = 601;  // Limit is changed (set/unset) for a given group
+     UG_APP_LINK        = 602;  // Linkage is changed (created/removed) between an application and a group
+     UG_USER_RESOURCE   = 603;  // Resource usage updated for a user
+     UG_GROUP_RESOURCE  = 604;  // Resource usage updated for a group
    }
 
    // the type of the object associated with the event
diff --git a/si.proto b/si.proto
index 306cca8..2cd7665 100644
--- a/si.proto
+++ b/si.proto
@@ -554,12 +554,11 @@
      ALLOC_REPLACED     = 503;  // Allocation replacement (placeholder)
      ALLOC_NODEREMOVED  = 504;  // Allocation cancelled, node removal
 
-     UG_USER_LIMITSET   = 600;  // Limit is configured for a given user
-     UG_GROUP_LIMITSET  = 601;  // Limit is configured for a given group
-     UG_APP_LINK        = 602;  // Linkage is created between an application and a group
-     UG_APP_UNLINK      = 603;  // Unlinking an application and a group
-     UG_USER_RESOURCE   = 604;  // Resource usage updated for a user
-     UG_GROUP_RESOURCE  = 605;  // Resource usage updated for a group
+     UG_USER_LIMIT      = 600;  // Limit is changed (set/unset) for a given user
+     UG_GROUP_LIMIT     = 601;  // Limit is changed (set/unset) for a given group
+     UG_APP_LINK        = 602;  // Linkage is changed (created/removed) between an application and a group
+     UG_USER_RESOURCE   = 603;  // Resource usage updated for a user
+     UG_GROUP_RESOURCE  = 604;  // Resource usage updated for a group
    }
 
    // the type of the object associated with the event