remove title field

src/pages/about-cat.md

@@ -2,7 +2,6 @@
 title: About my cat
 eleventyNavigation:
   key: about my cat
-  title: null
   parent: about
   order: null
 ___mb_schema: /.mattrbld/schemas/page.json

src/pages/about.md

@@ -2,7 +2,6 @@
 title: About me
 eleventyNavigation:
   key: about
-  title: null
   parent: null
   order: 3
 ___mb_schema: /.mattrbld/schemas/page.json

src/pages/contact.md

@@ -3,7 +3,6 @@ title: Contact
 ___mb_schema: /.mattrbld/schemas/page.json
 eleventyNavigation:
   key: contact
-  title: ''
   parent: null
   order: 2
 ---

src/pages/index.md

@@ -4,7 +4,6 @@ title: Home
 ___mb_schema: /.mattrbld/schemas/page.json
 eleventyNavigation:
   key: home
-  title: null
   parent: null
   order: 1
 ---