[llvm] [WebAssembly] Remove ExceptionInfo grouping tweaks (NFC) (PR #191495)

[Heejin Ahn via llvm-commits]

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@@ -53,7 +53,7 @@ machineFunctionInfo:
     2:               3
 body:             |
   bb.0:
-    successors: %bb.1, %bb.2
+    successors: %bb.1, %bb.2, %bb.3
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aheejin wrote:

After switching to use `findUnwindDestinations` in #130374, this `bb.3` would've added as a successor here, if this mir file were to be generated after that.

https://github.com/llvm/llvm-project/pull/191495