Added the method deleteStory, allowing bots to delete stories they had previously posted on behalf of a managed business account.

Author: mircoianese

library/src/main/java/com/pengrad/telegrambot/request/business/DeleteStory.kt

@@ -0,0 +1,16 @@
+package com.pengrad.telegrambot.request.business
+
+import com.pengrad.telegrambot.request.KBaseRequest
+import com.pengrad.telegrambot.response.BaseResponse
+import com.pengrad.telegrambot.utility.kotlin.requestParameter
+
+@Suppress("unused")
+class DeleteStory(
+    businessConnectionId: String,
+    storyId: Int
+): KBaseRequest<DeleteStory, BaseResponse>(BaseResponse::class) {
+
+    val businessConnectionId: String by requestParameter(businessConnectionId, customParameterName = "business_connection_id")
+    val storyId: Int by requestParameter(storyId, customParameterName = "story_id")
+
+}