[clang-tools-extra] [clang-tidy][NFC][doc] clean out-dated clang-static-analyzer checks (PR #119580)

[Congcong Cai via cfe-commits]

================
@@ -0,0 +1,13 @@
+.. title:: clang-tidy - clang-analyzer-cplusplus.SelfAssignment
+.. meta::
+   :http-equiv=refresh: 5;URL=https://clang.llvm.org/docs/analyzer/checkers.html#cplusplus-selfassignment
+
+clang-analyzer-cplusplus.SelfAssignment
+======================================
----------------
HerrCai0907 wrote:

```suggestion
=======================================
```


https://github.com/llvm/llvm-project/pull/119580