[IMP] web: remove duplicated BS utility classes definition

Since Bootstrap 5.3, the `overflow-{x,y}-*` are defined in standards.

This commit removes our own (now duplicated) definitions.

closes odoo#165721

Signed-off-by: Romeo Fragomeli (rfr) <[email protected]>

Author: pparidans

addons/web/static/src/scss/utilities_custom.scss

@@ -170,14 +170,6 @@ $utilities: map-merge(
             property: z-index,
             values: 0 1,
         ),
-        "overflow-x": (
-            property: overflow-x,
-            values: auto hidden visible scroll,
-        ),
-        "overflow-y": (
-            property: overflow-y,
-            values: auto hidden visible scroll,
-        ),
         "transition": (
             property: transition,
             values: (