This test tries to walk a sysfs path and hits a null pointer exception.

/tmp/guix-build-ceph-12.0.0.drv-0/ceph-12.0.0/src/test/common/test_blkdev.cc:32: Failure
Expected: (dir) != (nullptr), actual: NULL vs 8-byte object <00-00 00-00 00-00 00-00>

diff --git a/src/test/common/CMakeLists.txt b/src/test/common/CMakeLists.txt
index 5172663898..ac84085eaa 100644
--- a/src/test/common/CMakeLists.txt
+++ b/src/test/common/CMakeLists.txt
@@ -12,15 +12,6 @@ target_link_libraries(get_command_descriptions
   ${CMAKE_DL_LIBS}
   )
 
-if(HAVE_BLKID)
-# unittest_blkdev
-add_executable(unittest_blkdev
-  test_blkdev.cc
-  )
-add_ceph_unittest(unittest_blkdev ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/unittest_blkdev)
-target_link_libraries(unittest_blkdev global ${BLKID_LIBRARIES})
-endif(HAVE_BLKID)
-
 # unittest_bloom_filter
 add_executable(unittest_bloom_filter
   test_bloom_filter.cc
-- 
2.11.1

