Removed unused custom settings and comments regarding them.

blank-canvas-blocks/experimental-theme.json

@@ -88,16 +88,7 @@
 				"contentSize": "620px",
 				"wideSize": "1000px"
 			},
-			"custom-comments":{
-				"root": "TODO: removed copied root typography preset variables to custom when this (or a similar PR) gets merged: https://github.com/WordPress/gutenberg/pull/29714",
-				"search-block": "the core/search variables won't work until https://github.com/WordPress/gutenberg/pull/29830 is merged"
-			},
 			"custom": {
-				"typography": {
-					"fontSize": "var(--wp--preset--font-size--normal)",
-					"lineHeight": "1.6",
-					"fontFamily": "var(--wp--preset--font-family--base)"
-				},
 				"color": {
 					"primary": "var(--wp--preset--color--black)",
 					"secondary": "var(--wp--preset--color--blue)",