Fix (2) fuzzer build with the {Destroy->Unregister}ObjectCmd

Building `third_party/dawn/src/dawn/fuzzers` now succeeds locally.

Bug: 344963953
Change-Id: I775808ec38f2ba6407d8e527ce8968708e6c3559
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/197574
Auto-Submit: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
diff --git a/src/dawn/fuzzers/lpmfuzz/dawn_lpm.json b/src/dawn/fuzzers/lpmfuzz/dawn_lpm.json
index f039498..ec97865 100644
--- a/src/dawn/fuzzers/lpmfuzz/dawn_lpm.json
+++ b/src/dawn/fuzzers/lpmfuzz/dawn_lpm.json
@@ -32,7 +32,7 @@
 
     "custom_cmds": [
         "device create shader module",
-        "destroy object"
+        "unregister object"
     ],
 
     "blocklisted_cmds": [