build: Remove duplicate ARM_MMU_USE_SMALL_PAGES

spec/build/bsps/arm/optmmusmallpages.yml

@@ -1,7 +1,6 @@
 SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
 actions:
 - get-boolean: null
-- env-assign: null
 - define-condition: null
 build-type: option
 copyrights:
@@ -11,7 +10,6 @@ default-by-variant: []
 description: |
   Use MMU with small pages (4KiB)
 enabled-by: true
-format: '{}'
 links: []
 name: ARM_MMU_USE_SMALL_PAGES
 type: build

spec/build/bsps/arm/realview-pbx-a9/bsprealviewpbxa9.yml

@@ -39,7 +39,7 @@ links:
 - role: build-dependency
   uid: optclkfastidle
 - role: build-dependency
-  uid: optmmusmallpages
+  uid: ../optmmusmallpages
 - role: build-dependency
   uid: optresetvec
 - role: build-dependency

spec/build/bsps/arm/realview-pbx-a9/optmmusmallpages.yml

@@ -1,15 +0,0 @@
-SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
-actions:
-- get-boolean: null
-- define-condition: null
-build-type: option
-copyrights:
-- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
-default: true
-default-by-variant: []
-description: |
-  use MMU with small pages (4KiB)
-enabled-by: true
-links: []
-name: ARM_MMU_USE_SMALL_PAGES
-type: build