Added .emojiremove command

src/NadekoBot/Modules/Utility/Utility.cs

@@ -374,10 +374,15 @@ public partial class Utility : NadekoModule
     [Priority(0)]
     public async Task EmojiRemove(params Emote[] emotes)
     {
+        if (emotes.Length == 0)
+            return;
+        
+        var g = (SocketGuild)ctx.Guild;
+        
         var fails = new List<Emote>();
         foreach (var emote in emotes)
         {
-            var guildEmote = await ctx.Guild.GetEmoteAsync(emote.Id);
+            var guildEmote = g.Emotes.FirstOrDefault(x => x.Id == emote.Id);
             if (guildEmote is null)
             {
                 fails.Add(emote);

src/NadekoBot/data/strings/commands/commands.en-US.yml

@@ -1217,6 +1217,10 @@ emojiadd:
     - ":someonesCustomEmoji:"
     - "MyEmojiName :someonesCustomEmoji:"
     - "owoNice https://cdn.discordapp.com/emojis/587930873811173386.png?size=128"
+emojiremove:
+  desc: "Removes the specified emoji or emojis from this server."
+  args:
+    - ":eagleWarrior: :plumedArcher:"
 deckshuffle:
   desc: "Reshuffles all cards back into the deck."
   args: