[thems] remove default token colors

extensions/theme-defaults/themes/dark_vs.json

@@ -3,20 +3,13 @@
 	"name": "Dark (Visual Studio)",
 	"include": "./dark_defaults.json",
 	"tokenColors": [
-		{
-			"settings": {
-				"foreground": "#D4D4D4",
-				"background": "#1E1E1E"
-			}
-		},
 		{
 			"scope": [
 				"meta.embedded",
 				"source.groovy.embedded"
 			],
 			"settings": {
-				"foreground": "#D4D4D4",
-				"background": "#1E1E1E"
+				"foreground": "#D4D4D4"
 			}
 		},
 		{

extensions/theme-defaults/themes/light_vs.json

@@ -6,8 +6,7 @@
 		{
 			"scope": ["meta.embedded", "source.groovy.embedded"],
 			"settings": {
-				"foreground": "#000000ff",
-				"background":"#ffffffff"
+				"foreground": "#000000ff"
 			}
 		},
 		{