chore: cleanup no longer used translation strings

assets/l10n/intl_eu.arb

@@ -1,6 +1,6 @@
 {
   "@@locale": "eu",
-  "@@last_modified": "2020-09-23 11:46:02.601891",
+  "@@last_modified": "2021-08-14 12:06:11.763625",
   "about": "Honi buruz",
   "@about": {
     "type": "text",
@@ -142,13 +142,6 @@
     "type": "text",
     "placeholders": {}
   },
-  "byDefaultYouWillBeConnectedTo": "Modu lehenetsian {homeserver}-(e)ra konektatua izango zara",
-  "@byDefaultYouWillBeConnectedTo": {
-    "type": "text",
-    "placeholders": {
-      "homeserver": {}
-    }
-  },
   "cachedKeys": "Gakoak ongi gorde dira!",
   "@cachedKeys": {
     "type": "text",
@@ -908,11 +901,6 @@
     "type": "text",
     "placeholders": {}
   },
-  "newPrivateChat": "",
-  "@newPrivateChat": {
-    "type": "text",
-    "placeholders": {}
-  },
   "newVerificationRequest": "",
   "@newVerificationRequest": {
     "type": "text",