fix leaking rpc condition parmeters to time condition schema

src/conditions/base/time.ts

@@ -1,13 +1,15 @@
 import Joi from 'joi';
 
+import { omit } from '../../utils';
+
 import { RpcCondition, rpcConditionSchema } from './rpc';
 
 const BLOCKTIME_METHOD = 'blocktime';
 
 const timeConditionSchema = {
-  ...rpcConditionSchema,
+  // TimeCondition is an RpcCondition with the method set to 'blocktime' and no parameters
+  ...omit(rpcConditionSchema, ['parameters']),
   method: Joi.string().valid(BLOCKTIME_METHOD).required(),
-  parameters: undefined, // TimeCondition does not accept parameters
 };
 
 export class TimeCondition extends RpcCondition {

src/utils.ts

@@ -67,3 +67,9 @@ export const bytesEquals = (first: Uint8Array, second: Uint8Array): boolean =>
 
 export const objectEquals = (a: unknown, b: unknown, strict = true): boolean =>
   deepEqual(a, b, { strict });
+
+export const omit = (obj: Record<string, unknown>, keys: string[]) => {
+  const copy = { ...obj };
+  keys.forEach((key) => delete copy[key]);
+  return copy;
+};