docs: remove undefined mixin `xy-cell-breakpoints` #10276

Closes https://github.com/zurb/foundation-sites/issues/10276

diff --git a/docs/pages/xy-grid.md b/docs/pages/xy-grid.md
index 71f5e5cce92c92e20e6213cb890f2234931030fb..7f95bf2a85c25e08241a1cbd5f60f5d6eda13850 100644 (file)
--- a/docs/pages/xy-grid.md
+++ b/docs/pages/xy-grid.md
@@ -425,14 +425,6 @@ Refer to the Sass documentation below to learn how each mixin works and the avai
 }
 ```
 
-We also have a shorthand option for the above which outputs the same CSS:
-
-```scss
-.main-content {
-  @include xy-cell-breakpoints((small: full, medium: 8));
-}
-```
-
 ### Custom Block Grid
 
 Use the `xy-grid-layout()` mixin to create your own block grid.