Fixed feature card compilation error

pages/support/support.scarlet

@@ -1,39 +1,9 @@
-mixin feature-cards
-	horizontal-wrap
-	justify-content center
-	width 100%
-	max-width 1200px
-	margin content-padding auto
-
-mixin feature-card
-	vertical
-	flex-basis 240px
-	border-radius 5px
-	overflow hidden
-	background ui-background
-	box-shadow shadow-light
-	border 1px solid ui-border-color
-	margin 1.2rem
-	default-transition
-
-	:hover
-		box-shadow shadow-medium
-		text-shadow none
-
 .feature-cards
 	feature-cards
 
 .feature-card
 	feature-card
 
-mixin feature-card-component
-	horizontal
-	justify-content center
-	align-items center
-	text-align center
-	padding 1rem
-	margin 0
-
 .feature-card-icon,
 .feature-card-text
 	feature-card-component