[clang] [clang-tools-extra] [analyzer] Remove alpha.core.IdenticalExpr Checker (PR #114715)

[Julian Schmidt via cfe-commits]

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@@ -814,6 +814,12 @@ Improvements
 Moved checkers
 ^^^^^^^^^^^^^^
 
+- The checker ``alpha.core.IdenticalExpr`` was removed because it was
+  duplicated in the clang-tidy checkers ``misc-redundant-expression`` and
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5chmidti wrote:

nit

https://github.com/llvm/llvm-project/pull/114715