chore: cleanup no longer used translation strings

assets/l10n/intl_hy.arb

@@ -1,6 +1,6 @@
 {
   "@@locale": "hy",
-  "@@last_modified": "2020-09-23 11:46:02.219595",
+  "@@last_modified": "2021-08-14 12:06:11.654188",
   "about": "Հավելվածի մասին",
   "@about": {
     "type": "text",
@@ -135,13 +135,6 @@
     "type": "text",
     "placeholders": {}
   },
-  "byDefaultYouWillBeConnectedTo": "",
-  "@byDefaultYouWillBeConnectedTo": {
-    "type": "text",
-    "placeholders": {
-      "homeserver": {}
-    }
-  },
   "cachedKeys": "",
   "@cachedKeys": {
     "type": "text",
@@ -884,11 +877,6 @@
     "type": "text",
     "placeholders": {}
   },
-  "newPrivateChat": "",
-  "@newPrivateChat": {
-    "type": "text",
-    "placeholders": {}
-  },
   "newVerificationRequest": "",
   "@newVerificationRequest": {
     "type": "text",