package/sconeserver: disable image

Build of http::sconesite::image module was silently broken until commit
d3b818c3cf0990117a8b59fcfc6c212f310ae6ec

However, sconeserver fails to build with ImageMagick because:
- it checks for ImageMagick++.pc instead of ImageMagick.pc
- it uses the transform function which has been removed from the public
  API since version 7.0.1-0 and
  https://github.com/ImageMagick/ImageMagick/commit/06f590165f0505d42005264893fe14a9e8a79986

As sconeserver does not seem to be maintained anymore, drop
BR2_PACKAGE_SCONESERVER_HTTP_SCONESITE_IMAGE.

Fixes:
 - http://autobuild.buildroot.org/results/895ab582d1140f7677fc1c6934fa2e0c47c49f20

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Arnout: add legacy symbol. It costs us exactly nothing, and if someone
actually had that selected, they know what's going on.]
(cherry picked from commit fdb6fc2b4a5be747e7695f594cbbb1a941ceb05b)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Config.in.legacy

@@ -146,6 +146,12 @@ endif
 
 comment "Legacy options removed in 2021.02"
 
+config BR2_PACKAGE_SCONESERVER_HTTP_SCONESITE_IMAGE
+	bool "sconeserver http::sconesite::image removed"
+	help
+	  Sconeserver cannot be built with ImageMagick - it uses the
+	  "transofrm" function which is removed from public API.
+
 config BR2_PACKAGE_XSERVER_XORG_SERVER_KDRIVE_EVDEV
 	bool "KDrive/TinyX evdev input driver removed"
 	select BR2_LEGACY

package/sconeserver/Config.in

@@ -26,14 +26,6 @@ config BR2_PACKAGE_SCONESERVER_HTTP_SCONESITE
 	help
 	  http::sconesite module for Sconeserver
 
-config BR2_PACKAGE_SCONESERVER_HTTP_SCONESITE_IMAGE
-	bool "http::sconesite::image"
-	depends on BR2_PACKAGE_SCONESERVER_HTTP_SCONESITE
-	depends on BR2_USE_MMU # imagemagick
-	select BR2_PACKAGE_IMAGEMAGICK
-	help
-	  http::sconesite::image module for Sconeserver
-
 config BR2_PACKAGE_SCONESERVER_MYSQL
 	bool "mysql"
 	depends on BR2_USE_MMU # mysql

package/sconeserver/sconeserver.mk

@@ -14,10 +14,16 @@ SCONESERVER_DEPENDENCIES = \
 	host-pkgconf \
 	$(if $(BR2_PACKAGE_PCRE),pcre) \
 	zlib
+# disable image as it fails to build with ImageMagick
 # disable markdown module because its git submodule cmark
 # https://github.com/sconemad/sconeserver/tree/master/markdown
 # has no cross-compile support provided by the sconeserver build system
-SCONESERVER_CONF_OPTS += --with-ip --with-local --with-ip6 --without-markdown
+SCONESERVER_CONF_OPTS += \
+	--with-ip \
+	--with-local \
+	--with-ip6 \
+	--without-image \
+	--without-markdown
 
 # Sconeserver configure script fails to find the libxml2 headers.
 ifeq ($(BR2_PACKAGE_LIBXML2),y)
@@ -45,13 +51,6 @@ else
 SCONESERVER_CONF_OPTS += --without-sconesite
 endif
 
-ifeq ($(BR2_PACKAGE_SCONESERVER_HTTP_SCONESITE_IMAGE),y)
-SCONESERVER_DEPENDENCIES += imagemagick
-SCONESERVER_CONF_OPTS += --with-image
-else
-SCONESERVER_CONF_OPTS += --without-image
-endif
-
 ifeq ($(BR2_PACKAGE_SCONESERVER_MYSQL),y)
 SCONESERVER_DEPENDENCIES += mysql
 SCONESERVER_CONF_OPTS += \