diff --git a/internal/postgres/insert_symbol_history.go b/internal/postgres/insert_symbol_history.go
index d33fda1..0b68758 100644
--- a/internal/postgres/insert_symbol_history.go
+++ b/internal/postgres/insert_symbol_history.go
@@ -12,7 +12,6 @@
 	"golang.org/x/pkgsite/internal"
 	"golang.org/x/pkgsite/internal/database"
 	"golang.org/x/pkgsite/internal/derrors"
-	"golang.org/x/pkgsite/internal/experiment"
 	"golang.org/x/pkgsite/internal/version"
 )
 
@@ -96,26 +95,8 @@
 				"goos",
 				"goarch",
 			}
-			for _, table := range []string{
-				"symbol_history",
-				"new_symbol_history",
-			} {
-				if experiment.IsActive(ctx, internal.ExperimentSkipInsertSymbols) {
-					if table == "symbol_history" {
-						// Skip this table because we can't insert into
-						// package_symbol_id due to integer overflow issues.
-						continue
-					}
-				}
-				// Only insert if the table exists.
-				// TODO(jba): remove after new_symbol_history is renamed to symbol_history.
-				if exists, err := tableExists(ctx, ddb, table); err != nil {
-					return err
-				} else if !exists {
-					continue
-				}
-				if err := ddb.BulkInsert(ctx, table, cols, values,
-					fmt.Sprintf(`ON CONFLICT (package_path_id, module_path_id, symbol_name_id, goos, goarch)
+			if err := ddb.BulkInsert(ctx, "symbol_history", cols, values, `
+				ON CONFLICT (package_path_id, module_path_id, symbol_name_id, goos, goarch)
 				DO UPDATE
 				SET
 					symbol_name_id=excluded.symbol_name_id,
@@ -128,9 +109,8 @@
 					goos=excluded.goos,
 					goarch=excluded.goarch
 				WHERE
-					%s.sort_version > excluded.sort_version`, table)); err != nil {
-					return err
-				}
+					symbol_history.sort_version > excluded.sort_version`); err != nil {
+				return err
 			}
 		}
 	}