No more custom button

src/Greenshot.Editor/Forms/ImageEditorForm.Designer.cs

@@ -1,4 +1,4 @@
-/*
+/*
  * Greenshot - a free and open source screenshot tool
  * Copyright (C) 2007-2021 Thomas Braun, Jens Klingen, Robin Krom
  * 
@@ -450,7 +450,7 @@ namespace Greenshot.Editor.Forms {
 			// 
 			this.btnEmoji.CheckOnClick = true;
 			this.btnEmoji.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;
-			this.btnEmoji.Image = ((System.Drawing.Image)(resources.GetObject("btnEmoji.Image")));
+            this.btnEmoji.Image = EmojiRenderer.GetBitmap("🙂", 32);
 			this.btnEmoji.ImageTransparentColor = System.Drawing.Color.Magenta;
 			this.btnEmoji.Text = "Emoji (M)";
 			this.btnEmoji.Name = "btnEmoji";

src/Greenshot.Editor/Forms/ImageEditorForm.resx

@@ -1107,7 +1107,4 @@
   <metadata name="zoomMenuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>782, 17</value>
   </metadata>
-  <data name="btnEmoji.Image" type="System.Resources.ResXFileRef, System.Windows.Forms">
-    <value>..\Resources\btnEmoji.Image.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
-  </data>
 </root>