feat: Remove stem deduce

Some private subproofs are not shown in the catalog and this breaks
dependencies

Pantograph/Symbol.lean

@@ -6,11 +6,7 @@ def is_symbol_unsafe_or_internal (n: Lean.Name) (info: Lean.ConstantInfo): Bool
   let nameDeduce: Bool := match n.getRoot with
   | .str _ name => name.startsWith "_" ∨ name == "Lean"
   | _ => true
-  let stemDeduce: Bool := match n with
-  | .anonymous => true
-  | .str _ name => name.startsWith "_"
-  | .num _ _ => true
-  nameDeduce ∨ stemDeduce ∨ info.isUnsafe
+  nameDeduce ∨ info.isUnsafe
 
 def to_compact_symbol_name (n: Lean.Name) (info: Lean.ConstantInfo): String :=
   let pref := match info with