local.conf.sample: Drop image-prelink

oe-core completely dropped the associated class and support:
https://lists.openembedded.org/g/openembedded-core/message/160848



This change drops the associated references in our build sample files.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

flavours/linux/local.conf.sample

@@ -131,8 +131,7 @@ EXTRA_IMAGE_FEATURES ?= "debug-tweaks"
 # enable extra features. Some available options which can be included in this variable
 # are:
 #   - 'buildstats' collect build statistics
-#   - 'image-prelink' in order to prelink the filesystem image
-USER_CLASSES ?= "buildstats image-prelink"
+USER_CLASSES ?= "buildstats"
 
 #
 # Runtime testing of images

flavours/zephyr/local.conf.sample

@@ -134,8 +134,7 @@ PACKAGE_CLASSES ?= "package_rpm"
 # enable extra features. Some available options which can be included in this variable
 # are:
 #   - 'buildstats' collect build statistics
-#   - 'image-prelink' in order to prelink the filesystem image
-USER_CLASSES ?= "buildstats image-prelink"
+USER_CLASSES ?= "buildstats"
 
 #
 # Runtime testing of images