[experimental] Revert IsCastRedundantInRust

Author: lucic71

cpp2rust/converter/converter.cpp

@@ -1887,7 +1887,8 @@ bool Converter::VisitImplicitCastExpr(clang::ImplicitCastExpr *expr) {
       break;
     }
     // Skip cast if source and target map to the same Rust type.
-    if (IsCastRedundantInRust(sub_expr, type)) {
+    if (GetUnsafeTypeAsString(sub_expr->getType()) ==
+        GetUnsafeTypeAsString(type)) {
       Convert(sub_expr);
       break;
     }