strings: remove stale translations

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

ui/src/main/res/values-hi/strings.xml

@@ -123,7 +123,6 @@
     <string name="public_key">सार्वजनिक कीस</string>
     <string name="public_key_description">सार्वजनिक कीस</string>
     <string name="qr_code_hint">टिप: `qrencode -t ansiutf8 &lt; tunnel.conf` के साथ उत्पन्न करो</string>
-    <string name="restore_on_boot_summary">बूट पर पहले से सक्षम टनल को ऊपर लाएं</string>
     <string name="restore_on_boot_title">बूट पर पुनर्स्थापित करें</string>
     <string name="save">सहेजें</string>
     <string name="select_all">सभी का चयन करे</string>

ui/src/main/res/values-it/strings.xml

@@ -123,7 +123,6 @@
     <string name="public_key">Chiave pubblica</string>
     <string name="public_key_description">La chiave pubblica</string>
     <string name="qr_code_hint">Suggerimento: genera con `qrencode -t ansiutf8 &lt; tunnel.conf`.</string>
-    <string name="restore_on_boot_summary">Attiva tunnel attivati in precedenza all\'avvio</string>
     <string name="restore_on_boot_title">Ripristina all\'avvio</string>
     <string name="save">Salva</string>
     <string name="select_all">Seleziona tutto</string>

ui/src/main/res/values-ja/strings.xml

@@ -117,7 +117,6 @@
     <string name="public_key">公開鍵</string>
     <string name="public_key_description">公開鍵</string>
     <string name="qr_code_hint">Tip: `qrencode -t ansiutf8 &lt; tunnel.conf` で生成できます</string>
-    <string name="restore_on_boot_summary">起動時に前回有効だったトンネルを起動する</string>
     <string name="restore_on_boot_title">起動時に復元</string>
     <string name="save">保存</string>
     <string name="select_all">すべて選択</string>

ui/src/main/res/values-ru/strings.xml

@@ -123,7 +123,6 @@
     <string name="public_key">Публичный ключ</string>
     <string name="public_key_description">Публичный ключ</string>
     <string name="qr_code_hint">Совет: генерировать с `qrencode -t ansiutf8 &lt; tunnel.conf`.</string>
-    <string name="restore_on_boot_summary">Поднимать ранее выбранные туннели при загрузке</string>
     <string name="restore_on_boot_title">Восстанавливать при загрузке</string>
     <string name="save">Сохранить</string>
     <string name="select_all">Выбрать все</string>

ui/src/main/res/values-zh-rCN/strings.xml

@@ -117,7 +117,6 @@
     <string name="public_key">公钥</string>
     <string name="public_key_description">公钥</string>
     <string name="qr_code_hint">提示：使用命令 `qrencode -t ansiutf8 &lt; tunnel.conf` 生成二维码</string>
-    <string name="restore_on_boot_summary">设备启动时自动开启上一次使用的隧道</string>
     <string name="restore_on_boot_title">开机自启</string>
     <string name="save">保存</string>
     <string name="select_all">全选</string>