Delete frontmatter.yaml

01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/01.geometrical-optics-general/02.geometrical-optics-validity/frontmatter.yaml

@@ -1,9 +0,0 @@
-# This page configuration is shared by all locales, in this directory.
-# You can override it in the individual frontmatter of the pages.
-
-content:
-    # https://learn.getgrav.org/15/content/collections#summary-of-collection-options
-    items: @self.children
-
-anchors:
-    active: false