Merge pull request #1599 from Automattic/fix/varia-issue-1598

Varia: Unset measure variable default for child themes

varia/sass/child-theme/_config-child-theme-deep.scss

@@ -100,7 +100,7 @@ $config-global: (
 	/* Spacing */
 	"spacing": (
 		"unit": (2 * $baseline-unit), // 16px
-		"measure": inherit, // Use ch units here. ie: 60ch = 60 character max-width
+		"measure": unset, // Use ch units here. ie: 60ch = 60 character max-width
 		"horizontal": (2 * $baseline-unit), // 16px
 		"vertical": (4 * $baseline-unit), // 32px matches default spacing in the editor.
 	),