Remove unnecessary deline method from PhoneCall

structures/phone/PhoneCall.js

@@ -16,7 +16,7 @@ module.exports = class PhoneCall {
 		await this.recipient.send(`☎️ Incoming call from **${this.origin.guild.name}**. Pick up?`);
 		const validation = await verify(this.recipient, null);
 		if (!validation) {
-			await this.decline(validation);
+			await this.hangup('declined', validation);
 			return this;
 		}
 		await this.accept();
@@ -31,12 +31,6 @@ module.exports = class PhoneCall {
 		return this;
 	}
 
-	async decline(validation) {
-		this.client.phone.delete(this.id);
-		await this.hangup('declined', validation);
-		return this;
-	}
-
 	async hangup(nonQuitter, validation) {
 		this.active = false;
 		clearTimeout(this.timeout);