[DO NOT USE] Cleanup unused res and code

app/src/main/java/com/hippo/ehviewer/network/InetValidator.kt

@@ -1,59 +0,0 @@
-/*
- * Copyright 2016 Hippo Seven
- *
- * 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.hippo.ehviewer.network
-
-import java.util.regex.Pattern
-
-object InetValidator {
-    private const val IPV4_REGEX = "^(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})$"
-    private val IPV4_PATTERN = Pattern.compile(IPV4_REGEX)
-
-    @JvmStatic
-    fun isValidInet4Address(inet4Address: String?): Boolean {
-        if (null == inet4Address) {
-            return false
-        }
-        val matcher = IPV4_PATTERN.matcher(inet4Address)
-        if (!matcher.find()) {
-            return false
-        }
-
-        // verify that address subgroups are legal
-        for (i in 1..4) {
-            val ipSegment = matcher.group(i)
-            if (ipSegment == null || ipSegment.isEmpty()) {
-                return false
-            }
-            val iIpSegment: Int = try {
-                ipSegment.toInt()
-            } catch (e: NumberFormatException) {
-                return false
-            }
-            if (iIpSegment > 255) {
-                return false
-            }
-            if (ipSegment.length > 1 && ipSegment.startsWith("0")) {
-                return false
-            }
-        }
-        return true
-    }
-
-    @JvmStatic
-    fun isValidInetPort(inetPort: Int): Boolean {
-        return inetPort in 0..65535
-    }
-}