Remove option to add extra password key slots

app/src/main/java/me/impy/aegis/ui/SlotManagerActivity.java

@@ -25,7 +25,6 @@ import me.impy.aegis.db.slots.SlotException;
 import me.impy.aegis.helpers.FingerprintHelper;
 import me.impy.aegis.ui.dialogs.Dialogs;
 import me.impy.aegis.ui.dialogs.FingerprintDialogFragment;
-import me.impy.aegis.ui.dialogs.PasswordDialogFragment;
 import me.impy.aegis.ui.views.SlotAdapter;
 import me.impy.aegis.ui.dialogs.SlotDialogFragment;
 
@@ -51,11 +50,6 @@ public class SlotManagerActivity extends AegisActivity implements SlotAdapter.Li
             dialog.show(getSupportFragmentManager(), null);
         });
 
-        findViewById(R.id.button_add_password).setOnClickListener(view -> {
-            PasswordDialogFragment dialog = new PasswordDialogFragment();
-            dialog.show(getSupportFragmentManager(), null);
-        });
-
         // set up the recycler view
         _adapter = new SlotAdapter(this);
         RecyclerView slotsView = findViewById(R.id.list_slots);

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

@@ -25,34 +25,6 @@
                 android:layout_height="wrap_content"
                 android:scrollbars="vertical"/>
 
-            <LinearLayout
-                android:id="@+id/button_add_password"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal"
-                android:paddingTop="12.5dp"
-                android:paddingBottom="12.5dp"
-                android:paddingStart="10dp"
-                android:paddingEnd="10dp"
-                android:clickable="true"
-                android:focusable="true"
-                android:foreground="?android:attr/selectableItemBackground">
-
-                <ImageView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:src="@drawable/ic_plus_black_24dp"
-                    android:tint="@color/colorAccent"
-                    android:layout_marginEnd="15dp"/>
-
-                <TextView
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:text="Add password"
-                    android:textAppearance="?android:attr/textAppearanceMedium"
-                    android:textColor="?android:attr/textColorSecondary"/>
-            </LinearLayout>
-
             <LinearLayout
                 android:id="@+id/button_add_fingerprint"
                 android:layout_width="match_parent"