tests: Remove test_reload test case

The test_reload test recompiled the LVM plugin and verified that
reinit picked up the new code. This no longer works because plugins
are loaded with RTLD_NODELETE, which prevents the shared library
from being unmapped on dlclose -- dlopen of the same path returns
the already-loaded library. The test_force_plugin test already
covers reloading with a different .so name.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vojtechtrefny

tests/library_test.py

@@ -210,39 +210,6 @@ def _clean_up(self):
         # try to get everything back to normal by (re)loading all plugins
         BlockDev.reinit(self.requested_plugins, True, None)
 
-    # recompiles the LVM plugin
-    @tag_test(TestTags.SLOW, TestTags.CORE, TestTags.SOURCEONLY)
-    def test_reload(self):
-        """Verify that reloading plugins works as expected"""
-
-        # max LV size should be something sane (not 1024 bytes)
-        orig_max_size = BlockDev.lvm_get_max_lv_size()
-        self.assertNotEqual(orig_max_size, 1024)
-
-        # change the sources and recompile
-        os.system("sed -ri 's?MAX_LV_SIZE;?1024;//test-change?' src/plugins/lvm/lvm-common.c > /dev/null")
-        ret = os.system("make -C src/plugins/lvm/ libbd_lvm.la >/dev/null 2>&1")
-        self.assertEqual(ret, 0, "Failed to recompile libblockdev for reload test")
-
-        # library should successfully reinitialize without reloading plugins
-        self.assertTrue(BlockDev.reinit(self.requested_plugins, False, None))
-
-        # LVM plugin not reloaded, max LV size should be the same
-        self.assertEqual(BlockDev.lvm_get_max_lv_size(), orig_max_size)
-
-        # library should successfully reinitialize reloading plugins
-        self.assertTrue(BlockDev.reinit(self.requested_plugins, True, None))
-
-        # LVM plugin reloaded, max LV size should be 1024 bytes
-        self.assertEqual(BlockDev.lvm_get_max_lv_size(), 1024)
-
-        # change the sources back and recompile
-        os.system("sed -ri 's?1024;//test-change?MAX_LV_SIZE;?' src/plugins/lvm/lvm-common.c > /dev/null")
-        os.system("make -C src/plugins/lvm/ libbd_lvm.la >/dev/null 2>&1")
-
-        # library should successfully reinitialize reloading original plugins
-        self.assertTrue(BlockDev.reinit(self.requested_plugins, True, None))
-
     # recompiles the LVM plugin
     @tag_test(TestTags.SLOW, TestTags.SOURCEONLY)
     def test_force_plugin(self):