[interpreter] Deprecate --ignition-fallback-on-catch flag.

test/cctest/interpreter/test-interpreter.cc

Index: test/cctest/interpreter/test-interpreter.cc
diff --git a/test/cctest/interpreter/test-interpreter.cc b/test/cctest/interpreter/test-interpreter.cc
index 3bee5fa0031e752b4dea0fe1c848eceb1a74339c..a34c1e37b6986bfa7519ee44d1150be7ae7d9dec 100644
--- a/test/cctest/interpreter/test-interpreter.cc
+++ b/test/cctest/interpreter/test-interpreter.cc
@@ -65,7 +65,6 @@ class InterpreterTester {
         bytecode_(bytecode),
         feedback_vector_(feedback_vector) {
     i::FLAG_ignition = true;
-    i::FLAG_ignition_fallback_on_catch = false;
     i::FLAG_always_opt = false;
     // Set ignition filter flag via SetFlagsFromString to avoid double-free
     // (or potential leak with StrDup() based on ownership confusion).