Clean l10n files.

src/_h5ai/conf/l10n/hr.json

@@ -13,7 +13,7 @@
     "files": "datoteka",
     "download": "preuzmi",
     "noMatch": "nema rezultata",
-    "dateFormat": "YYYY-MM-DD HH:mm", /* syntax as specified on http://momentjs.com */
+    "dateFormat": "YYYY-MM-DD HH:mm",
     "filter": "filter",
     "delete": "obriši"
 }

src/_h5ai/conf/l10n/ja.json

@@ -12,7 +12,7 @@
     "files": "ファイル",
     "download": "ダウンロード",
     "noMatch": "一致する項目が見つかりません",
-    "dateFormat": "YYYY-MM-DD HH:mm", /* syntax as specified on http://momentjs.com */
+    "dateFormat": "YYYY-MM-DD HH:mm",
     "filter": "フィルター",
     "view": "ビュー",
     "language": "言語"

src/_h5ai/conf/l10n/ru.json

@@ -1,4 +1,3 @@
-
 {
     "lang": "русский",
     "details": "Детали",