removeInterceptor(interceptorFn) {
		const oldlen = rpcInterceptorFns.length;
		let i = oldlen;

		while (i--)
			if (rpcInterceptorFns[i] === interceptorFn)
				rpcInterceptorFns.splice(i, 1);

		return (rpcInterceptorFns.length < oldlen);
	}
Removes a registered interceptor function.

@param {LuCI.rpc~interceptorFn} interceptorFn
The interceptor function to remove.

@returns {boolean}
Returns `true` if the given function has been removed or `false`
if it has not been found.