[fenix] Revert "For https://github.com/mozilla-mobile/fenix/issues/1751 - Add Delete Button to Private Toolbar"

This reverts commit a416b398e9dd04f032515ed55995a9b4b36a0547.

app/src/main/java/org/mozilla/fenix/components/toolbar/ToolbarIntegration.kt

@@ -5,8 +5,6 @@
 package org.mozilla.fenix.components.toolbar
 
 import android.content.Context
-import android.graphics.PorterDuff
-import androidx.core.content.ContextCompat
 import androidx.navigation.Navigation
 import mozilla.components.browser.domains.autocomplete.DomainAutocompleteProvider
 import mozilla.components.browser.session.SessionManager
@@ -50,30 +48,6 @@ class ToolbarIntegration(
                     return@run
                 }
 
-                if (isPrivate) {
-                    val deleteIcon = context.getDrawable(R.drawable.ic_delete)
-                    deleteIcon?.setColorFilter(
-                        ContextCompat.getColor(
-                            context,
-                            DefaultThemeManager.resolveAttribute(R.attr.primaryText, context)
-                        ), PorterDuff.Mode.SRC_IN
-                    )
-                    deleteIcon?.let {
-                        val deleteSessions = BrowserToolbar.Button(
-                            deleteIcon,
-                            context.getString(R.string.private_browsing_delete_session),
-                            listener = {
-                                context.components.useCases.tabsUseCases.removeAllTabsOfType.invoke(
-                                    private = true
-                                )
-                                Navigation.findNavController(toolbar)
-                                    .navigate(BrowserFragmentDirections.actionBrowserFragmentToHomeFragment())
-                            }
-                        )
-                        toolbar.addNavigationAction(deleteSessions)
-                    }
-                }
-
                 val tabsAction = TabCounterToolbarButton(
                     sessionManager,
                     {