Limit Findings and Draft Findings to the TAG. (#118)

Other W3C groups should use Notes, which are defined in the Process.
Non-W3C groups can use Dream or an appropriate status from their org.

boilerplate/doctypes.kdl

@@ -68,8 +68,6 @@ status "LS-COMMIT" "Commit Snapshot"
 status "LS-BRANCH" "Branch Snapshot"
 status "LS-PR" "PR Preview"
 status "LD" "Living Document"
-status "DRAFT-FINDING" "Draft Finding"
-status "FINDING" "Finding"
 
 org "whatwg" {
     group "whatwg" priv-sec=false
@@ -266,11 +264,11 @@ org "w3c" {
     }
     status "DRAFT-FINDING" "Draft Finding" {
         requires "ED"
-        group-types "wg" "tag"
+        group-types "tag"
     }
     status "FINDING" "Finding" {
         requires "TR"
-        group-types "wg" "tag"
+        group-types "tag"
     }
 }