Align setEffect instance definition with standard

Lord-Grey · Lord-Grey · commit 922e3c0d46bf · 2025-05-18T09:22:45.000+02:00
diff --git a/libsrc/api/JSONRPC_schema/schema-effect.json b/libsrc/api/JSONRPC_schema/schema-effect.json
@@ -14,8 +14,7 @@
 				"minimum": 0,
 				"maximum": 254
 			},
-			"uniqueItems": true,
-			"minItems": 1
+			"uniqueItems": true
 		},
 		"tan" : {
 			"type" : "integer"
