[clang] [NFCI][analyzer] Regularize NodeBuilder classes (PR #180960)

[Donát Nagy via cfe-commits]

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@@ -709,14 +707,6 @@ ExplodedNode* NodeBuilder::generateNodeImpl(const ProgramPoint &Loc,
   return N;
 }
 
-StmtNodeBuilder::~StmtNodeBuilder() {
-  if (EnclosingBldr)
-    for (const auto I : Frontier)
-      EnclosingBldr->addNodes(I);
-}
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NagyDonat wrote:

`EnclosingBldr` was always a nullpointer because that was the default argument in the constructor, no constructor call specified something else, and nothing changed it later.

https://github.com/llvm/llvm-project/pull/180960