delete unused class NetworkState (#2301)

app/src/main/java/com/keylesspalace/tusky/util/NetworkState.kt

@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.keylesspalace.tusky.util
-
-enum class Status {
-    RUNNING,
-    SUCCESS,
-    FAILED
-}
-
-@Suppress("DataClassPrivateConstructor")
-data class NetworkState private constructor(
-    val status: Status,
-    val msg: String? = null
-) {
-    companion object {
-        val LOADED = NetworkState(Status.SUCCESS)
-        val LOADING = NetworkState(Status.RUNNING)
-        fun error(msg: String?) = NetworkState(Status.FAILED, msg)
-    }
-}