Remove flag `--incompatible_strict_argument_ordering`.

RELNOTES: None.
PiperOrigin-RevId: 240453542
diff --git a/src/main/java/com/google/devtools/build/lib/syntax/Parser.java b/src/main/java/com/google/devtools/build/lib/syntax/Parser.java
index 000c6de..81f34c3 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/Parser.java
+++ b/src/main/java/com/google/devtools/build/lib/syntax/Parser.java
@@ -543,7 +543,7 @@
   private ImmutableList<Argument.Passed> parseFuncallArguments() {
     ImmutableList<Argument.Passed> arguments = parseFunctionArguments(this::parseFuncallArgument);
     try {
-      Argument.legacyValidateFuncallArguments(arguments);
+      Argument.validateFuncallArguments(arguments);
     } catch (Argument.ArgumentException e) {
       reportError(e.getLocation(), e.getMessage());
     }