show the dialog about removing launcher just once

app/src/main/kotlin/com/simplemobiletools/applauncher/adapters/LaunchersAdapter.kt

@@ -6,6 +6,7 @@ import android.view.ViewGroup
 import com.simplemobiletools.applauncher.R
 import com.simplemobiletools.applauncher.activities.SimpleActivity
 import com.simplemobiletools.applauncher.dialogs.EditDialog
+import com.simplemobiletools.applauncher.extensions.config
 import com.simplemobiletools.applauncher.extensions.dbHelper
 import com.simplemobiletools.applauncher.models.AppLauncher
 import com.simplemobiletools.commons.adapters.MyRecyclerViewAdapter
@@ -55,7 +56,7 @@ class LaunchersAdapter(activity: SimpleActivity, val launchers: MutableList<AppL
     override fun actionItemPressed(id: Int) {
         when (id) {
             R.id.cab_edit -> showEditDialog()
-            R.id.cab_remove -> askConfirmRemove()
+            R.id.cab_remove -> tryRemoveLauncher()
         }
     }
 
@@ -68,8 +69,17 @@ class LaunchersAdapter(activity: SimpleActivity, val launchers: MutableList<AppL
         }
     }
 
+    private fun tryRemoveLauncher() {
+        if (activity.config.wasRemoveInfoShown) {
+            removeItems()
+        } else {
+            askConfirmRemove()
+        }
+    }
+
     private fun askConfirmRemove() {
         ConfirmationDialog(activity, "", R.string.remove_explanation, R.string.ok, R.string.cancel) {
+            activity.config.wasRemoveInfoShown = true
             removeItems()
         }
     }

app/src/main/kotlin/com/simplemobiletools/applauncher/helpers/Config.kt

@@ -7,4 +7,8 @@ class Config(context: Context) : BaseConfig(context) {
     companion object {
         fun newInstance(context: Context) = Config(context)
     }
+
+    var wasRemoveInfoShown: Boolean
+        get() = prefs.getBoolean(WAS_REMOVE_INFO_SHOWN, false)
+        set(wasRemoveInfoShown) = prefs.edit().putBoolean(WAS_REMOVE_INFO_SHOWN, wasRemoveInfoShown).apply()
 }

app/src/main/kotlin/com/simplemobiletools/applauncher/helpers/Constants.kt

@@ -1,5 +1,7 @@
 package com.simplemobiletools.applauncher.helpers
 
+const val WAS_REMOVE_INFO_SHOWN = "was_remove_info_shown"
+
 val predefinedPackageNames = arrayListOf(
         "com.simplemobiletools.calculator",
         "com.simplemobiletools.calendar",