Update cargo-deny config

Author: cwfitzgerald

.deny.toml

@@ -1,8 +1,6 @@
 [bans]
 multiple-versions = "deny"
 skip-tree = [
-    # We never enable loom in any of our dependencies but it causes dupes
-    { name = "loom", version = "0.7.2" },
     { name = "windows-sys", version = "0.45" },
     { name = "winit", version = "0.29" },
     { name = "rustc_version", version = "0.2.3" },