Check that emoji files exist

emoji/default_emoji.json

@@ -330,12 +330,6 @@
     "pizza": "1F355",
     "placeofworship": "1F6D0",
     "playbutton": "25B6",
-    "playingcardaceofclubs": "1F0D1",
-    "playingcardaceofdiamonds": "1F0C1",
-    "playingcardaceofhearts": "1F0B1",
-    "playingcardback": "1F0A0",
-    "playingcardfool": "1F0E0",
-    "playingcardredjoker": "1F0BF",
     "pleadingface": "1F97A",
     "plussign": "2795",
     "poodle": "1F429",
@@ -443,14 +437,11 @@
     "thermometer": "1F321",
     "thinking": "1F914",
     "thinkingstallman": "7B2F1",
-    "three": "0033",
-    "threelinesconvergingright": "269E",
     "tick": "2714",
     "tiger": "1F405",
     "tomato": "1F345",
     "trademark": "2122",
     "trash": "E262",
-    "trianglewithroundedcorners": "1F6C6",
     "trophy": "1F3C6",
     "trumpet": "1F3BA",
     "tulip": "1F337",