Remove stray TV directory from 2.6.0 release

demos/tv/README.md

-# TV tuner demo application #
-
-This folder contains a demo application that uses ExoPlayer to play broadcast
-TV from USB tuners.

demos/tv/build.gradle

-// 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.
-apply from: '../../constants.gradle'
-apply plugin: 'com.android.application'
-
-android {
-    compileSdkVersion project.ext.compileSdkVersion
-    buildToolsVersion project.ext.buildToolsVersion
-
-    defaultConfig {
-        minSdkVersion 21
-        targetSdkVersion project.ext.targetSdkVersion
-    }
-
-    buildTypes {
-        release {
-            shrinkResources true
-            minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android.txt')
-        }
-        debug {
-            jniDebuggable = true
-        }
-    }
-
-    lintOptions {
-        // The demo app does not have translations.
-        disable 'MissingTranslation'
-    }
-
-}
-
-dependencies {
-    compile project(modulePrefix + 'library-core')
-    compile project(modulePrefix + 'library-ui')
-    compile project(modulePrefix + 'internal-extension-tv')
-    compile project(modulePrefix + 'extension-ffmpeg')
-}