drm: Remove DRM aperture helpers

The DRM aperture helpers are wrappers around video helpers from
<linux/aperture.h>. There are no callers of these functions. Remove
them entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240930130921.689876-29-tzimmermann@suse.de

Author: tdz

Documentation/gpu/drm-internals.rst

@@ -75,18 +75,6 @@ Module Initialization
 .. kernel-doc:: include/drm/drm_module.h
    :doc: overview
 
-Managing Ownership of the Framebuffer Aperture
-----------------------------------------------
-
-.. kernel-doc:: drivers/gpu/drm/drm_aperture.c
-   :doc: overview
-
-.. kernel-doc:: include/drm/drm_aperture.h
-   :internal:
-
-.. kernel-doc:: drivers/gpu/drm/drm_aperture.c
-   :export:
-
 Device Instance and Driver Handling
 -----------------------------------
 

MAINTAINERS

@@ -7097,12 +7097,10 @@ M:	Javier Martinez Canillas <javierm@redhat.com>
 L:	dri-devel@lists.freedesktop.org
 S:	Maintained
 T:	git https://gitlab.freedesktop.org/drm/misc/kernel.git
-F:	drivers/gpu/drm/drm_aperture.c
 F:	drivers/gpu/drm/tiny/ofdrm.c
 F:	drivers/gpu/drm/tiny/simpledrm.c
 F:	drivers/video/aperture.c
 F:	drivers/video/nomodeset.c
-F:	include/drm/drm_aperture.h
 F:	include/linux/aperture.h
 F:	include/video/nomodeset.h
 

drivers/gpu/drm/Makefile

@@ -34,7 +34,6 @@ endif
 subdir-ccflags-$(CONFIG_DRM_WERROR) += -Werror
 
 drm-y := \
-	drm_aperture.o \
 	drm_atomic.o \
 	drm_atomic_uapi.o \
 	drm_auth.o \