Revert "fix: possible fix for occasional infinite recursion"

This reverts commit a86cbc1.

This caused some values to be ellipsed that shouldn't have been, eg. in
Chroma tests:

```
             {
               Pattern: "\\$\\{",
        -      Type: chroma.TokenType(LiteralStringInterpol),
        +      Type: ...,
               Mutator: &chroma.pushMutator{
                 States: []string{
                   "curly",
        @@ -36,7 +36,7 @@
               Pattern: "^(\\w+)(=)",
               Type: &chroma.byGroupsEmitter{
                 Emitters: []chroma.Emitter{
        -          chroma.TokenType(NameAttribute),
        +          ...,
                   chroma.TokenType(Operator),
                 },
               },

```

Author: alecthomas

bin/.go-1.24.5.pkg bin/.go-1.24.3.pkgbin/.go-1.24.5.pkg renamed to bin/.go-1.24.3.pkg

@@ -1 +1 @@
-.go-1.24.5.pkg
+.go-1.24.3.pkg

bin/go

@@ -1 +1 @@
-.go-1.24.5.pkg
+.go-1.24.3.pkg

bin/gofmt

@@ -194,10 +194,7 @@ func (p *Printer) reprValue(seen map[reflect.Value]bool, v reflect.Value, indent
 		return
 	}
 	seen[v] = true
-	// Under some circumstances I see infinite recursion where I wouldn't expect it, but removing this solves it. Not
-	// sure why, I haven't been able to narrow it down to a small reproducible case.
-
-	// defer delete(seen, v)
+	defer delete(seen, v)
 
 	if v.Kind() == reflect.Invalid || (v.Kind() == reflect.Ptr || v.Kind() == reflect.Map || v.Kind() == reflect.Chan || v.Kind() == reflect.Slice || v.Kind() == reflect.Func || v.Kind() == reflect.Interface) && v.IsNil() {
 		fmt.Fprint(p.w, "nil")