Improve metadata in language translations, remove wikidata-downloading-script

assets/language_in_country.json

@@ -132,6 +132,7 @@
     "en"
   ],
   "CN": [
+    "zh",
     "zh"
   ],
   "CO": [
@@ -148,6 +149,7 @@
   ],
   "CY": [
     "tr",
+    "el",
     "el"
   ],
   "CZ": [
@@ -247,6 +249,9 @@
     "es",
     "pt"
   ],
+  "GR": [
+    "el"
+  ],
   "GT": [
     "es"
   ],
@@ -453,8 +458,7 @@
     "fr"
   ],
   "NG": [
-    "en",
-    "yo"
+    "en"
   ],
   "NI": [
     "es"
@@ -502,9 +506,7 @@
     "en"
   ],
   "PK": [
-    "ur",
-    "en",
-    "ar"
+    "ur"
   ],
   "PL": [
     "pl",
@@ -559,7 +561,6 @@
     "ar"
   ],
   "SE": [
-    "sv",
     "sv"
   ],
   "SG": [
@@ -648,6 +649,9 @@
     "en",
     "en"
   ],
+  "TW": [
+    "zh"
+  ],
   "TZ": [
     "en",
     "sw"
@@ -693,16 +697,16 @@
     "ar"
   ],
   "ZA": [
+    "en",
+    "zu",
+    "xh",
     "af",
     "ve",
     "ss",
     "tn",
     "ts",
     "st",
-    "nr",
-    "en",
-    "zu",
-    "xh"
+    "nr"
   ],
   "ZM": [
     "en"