tunnel: Remove MISSING_VALUE from BadConfigException reasons

This is covered under SYNTAX_ERROR which feels like a reasonable choice,
so get rid of this unused field and associated resource string.

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

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

@@ -39,7 +39,6 @@
     <string name="bad_config_reason_invalid_value">अमान्य मूल्य</string>
     <string name="bad_config_reason_missing_attribute">गुम विशेषता</string>
     <string name="bad_config_reason_missing_section">छूटा हुआ भाग</string>
-    <string name="bad_config_reason_missing_value">अनुपस्थित मान</string>
     <string name="bad_config_reason_syntax_error">वक्य रचना त्रुटि</string>
     <string name="bad_config_reason_unknown_attribute">अज्ञात एट्रिब्यूट</string>
     <string name="bad_config_reason_unknown_section">अज्ञात एट्रिब्यूट </string>

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

@@ -39,7 +39,6 @@
     <string name="bad_config_reason_invalid_value">Valore non valido</string>
     <string name="bad_config_reason_missing_attribute">Attributo mancante</string>
     <string name="bad_config_reason_missing_section">Sezione mancante</string>
-    <string name="bad_config_reason_missing_value">Valore mancante</string>
     <string name="bad_config_reason_syntax_error">Errore di sintassi</string>
     <string name="bad_config_reason_unknown_attribute">Attributo sconosciuto</string>
     <string name="bad_config_reason_unknown_section">Sezione sconosciuta</string>

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

@@ -33,7 +33,6 @@
     <string name="bad_config_reason_invalid_value">無効な値</string>
     <string name="bad_config_reason_missing_attribute">属性が不足しています</string>
     <string name="bad_config_reason_missing_section">セクションが不足しています</string>
-    <string name="bad_config_reason_missing_value">値が不足しています</string>
     <string name="bad_config_reason_syntax_error">構文エラー</string>
     <string name="bad_config_reason_unknown_attribute">未知の属性</string>
     <string name="bad_config_reason_unknown_section">未知のセクション</string>

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

@@ -39,7 +39,6 @@
     <string name="bad_config_reason_invalid_value">Неправильное значение</string>
     <string name="bad_config_reason_missing_attribute">Несуществующий атрибут</string>
     <string name="bad_config_reason_missing_section">Несуществующий раздел</string>
-    <string name="bad_config_reason_missing_value">Несуществющее значение</string>
     <string name="bad_config_reason_syntax_error">Синтаксическая ошибка</string>
     <string name="bad_config_reason_unknown_attribute">Неизвестный атрибут</string>
     <string name="bad_config_reason_unknown_section">Неизвестный раздел</string>

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

@@ -33,7 +33,6 @@
     <string name="bad_config_reason_invalid_value">数值无效</string>
     <string name="bad_config_reason_missing_attribute">属性缺失</string>
     <string name="bad_config_reason_missing_section">节缺失</string>
-    <string name="bad_config_reason_missing_value">数值缺失</string>
     <string name="bad_config_reason_syntax_error">语法错误</string>
     <string name="bad_config_reason_unknown_attribute">属性未知</string>
     <string name="bad_config_reason_unknown_section">节未知</string>

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

@@ -39,7 +39,6 @@
     <string name="bad_config_reason_invalid_value">Invalid value</string>
     <string name="bad_config_reason_missing_attribute">Missing attribute</string>
     <string name="bad_config_reason_missing_section">Missing section</string>
-    <string name="bad_config_reason_missing_value">Missing value</string>
     <string name="bad_config_reason_syntax_error">Syntax error</string>
     <string name="bad_config_reason_unknown_attribute">Unknown attribute</string>
     <string name="bad_config_reason_unknown_section">Unknown section</string>