Re-enable table-based reflection parsing

PiperOrigin-RevId: 496415264

src/google/protobuf/port_def.inc

diff --git a/src/google/protobuf/port_def.inc b/src/google/protobuf/port_def.inc
index 443eff5..ed2b022 100644
--- a/src/google/protobuf/port_def.inc
+++ b/src/google/protobuf/port_def.inc
@@ -808,8 +808,7 @@
 #ifdef PROTOBUF_USE_TABLE_PARSER_ON_REFLECTION
 #error PROTOBUF_USE_TABLE_PARSER_ON_REFLECTION was previously defined
 #endif
-// Note: b/243790549 turn off table-based parsing temporarily
-#if 0  // !defined(PROTOBUF_TEMPORARY_DISABLE_TABLE_PARSER_ON_REFLECTION)
+#if !defined(PROTOBUF_TEMPORARY_DISABLE_TABLE_PARSER_ON_REFLECTION)
 #define PROTOBUF_USE_TABLE_PARSER_ON_REFLECTION 1
 #endif  // PROTOBUF_ENABLE_FORCE_ALLOCATION_ON_CONSTRUCTION