[fenix] For https://github.com/mozilla-mobile/fenix/issues/2529 - Remove "Delete Collection" button from private browsing

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlAdapter.kt

@@ -11,7 +11,6 @@ import androidx.recyclerview.widget.RecyclerView
 import io.reactivex.Observer
 import kotlinx.coroutines.Job
 import org.mozilla.fenix.home.sessioncontrol.viewholders.SaveTabGroupViewHolder
-import org.mozilla.fenix.home.sessioncontrol.viewholders.DeleteTabsViewHolder
 import org.mozilla.fenix.home.sessioncontrol.viewholders.NoTabMessageViewHolder
 import org.mozilla.fenix.home.sessioncontrol.viewholders.PrivateBrowsingDescriptionViewHolder
 import org.mozilla.fenix.home.sessioncontrol.viewholders.TabHeaderViewHolder
@@ -36,7 +35,6 @@ sealed class AdapterItem {
     object NoTabMessage : AdapterItem()
     data class TabItem(val tab: Tab) : AdapterItem()
     object SaveTabGroup : AdapterItem()
-    object DeleteTabs : AdapterItem()
 
     object PrivateBrowsingDescription : AdapterItem()
 
@@ -65,7 +63,6 @@ sealed class AdapterItem {
             is TabItem -> TabViewHolder.LAYOUT_ID
             SaveTabGroup -> SaveTabGroupViewHolder.LAYOUT_ID
             PrivateBrowsingDescription -> PrivateBrowsingDescriptionViewHolder.LAYOUT_ID
-            DeleteTabs -> DeleteTabsViewHolder.LAYOUT_ID
             CollectionHeader -> CollectionHeaderViewHolder.LAYOUT_ID
             NoCollectionMessage -> NoCollectionMessageViewHolder.LAYOUT_ID
             is CollectionItem -> CollectionViewHolder.LAYOUT_ID
@@ -105,7 +102,6 @@ class SessionControlAdapter(
             TabViewHolder.LAYOUT_ID -> TabViewHolder(view, actionEmitter, job)
             SaveTabGroupViewHolder.LAYOUT_ID -> SaveTabGroupViewHolder(view, actionEmitter)
             PrivateBrowsingDescriptionViewHolder.LAYOUT_ID -> PrivateBrowsingDescriptionViewHolder(view, actionEmitter)
-            DeleteTabsViewHolder.LAYOUT_ID -> DeleteTabsViewHolder(view, actionEmitter)
             CollectionHeaderViewHolder.LAYOUT_ID -> CollectionHeaderViewHolder(view)
             NoCollectionMessageViewHolder.LAYOUT_ID -> NoCollectionMessageViewHolder(view)
             CollectionViewHolder.LAYOUT_ID -> CollectionViewHolder(view, actionEmitter, job)

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlUIView.kt

@@ -53,7 +53,6 @@ private fun privateModeAdapterItems(tabs: List<Tab>): List<AdapterItem> {
 
     if (tabs.isNotEmpty()) {
         items.addAll(tabs.reversed().map(AdapterItem::TabItem))
-        items.add(AdapterItem.DeleteTabs)
     } else {
         items.add(AdapterItem.PrivateBrowsingDescription)
     }

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/viewholders/DeleteTabsViewHolder.kt

@@ -1,29 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-package org.mozilla.fenix.home.sessioncontrol.viewholders
-
-import android.view.View
-import androidx.recyclerview.widget.RecyclerView
-import io.reactivex.Observer
-import kotlinx.android.synthetic.main.delete_tabs_button.view.*
-import org.mozilla.fenix.R
-import org.mozilla.fenix.home.sessioncontrol.SessionControlAction
-import org.mozilla.fenix.home.sessioncontrol.TabAction
-import org.mozilla.fenix.home.sessioncontrol.onNext
-
-class DeleteTabsViewHolder(
-    view: View,
-    private val actionEmitter: Observer<SessionControlAction>
-) : RecyclerView.ViewHolder(view) {
-
-    init {
-        view.delete_session_button.setOnClickListener {
-            actionEmitter.onNext(TabAction.CloseAll(true))
-        }
-    }
-    companion object {
-        const val LAYOUT_ID = R.layout.delete_tabs_button
-    }
-}

app/src/main/res/layout/delete_tabs_button.xml

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<FrameLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/delete_session_button"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_marginTop="16dp"
-    android:layout_marginBottom="16dp"
-    android:background="@drawable/button_background"
-    android:backgroundTint="?accent"
-    android:clickable="true"
-    android:focusable="true"
-    android:foreground="?android:attr/selectableItemBackground"
-    android:padding="6dp">
-
-    <TextView
-        android:id="@+id/delete_session_button_text"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:clickable="false"
-        android:drawableStart="@drawable/ic_delete"
-        android:drawablePadding="8dp"
-        android:focusable="false"
-        android:textStyle="bold"
-        android:gravity="center"
-        android:text="@string/collection_delete"
-        android:textColor="?contrastText"
-        android:textSize="16sp" />
-</FrameLayout>