[Interpreter] Remove unused --ignition-eager flag.

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 61d63c7cec2624b3588383b763d71fd499d61f89..2333ba135075642a19d92cd95d8a9dc4e87da1ab 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -614,10 +614,6 @@ Parser::Parser(ParseInfo* info)
   // Consider compiling eagerly when targeting the code cache.
   can_compile_lazily &= !(FLAG_serialize_eager && info->will_serialize());
 
-  // Consider compiling eagerly when compiling bytecode for Ignition.
-  can_compile_lazily &= !(FLAG_ignition && FLAG_ignition_eager &&
-                          info->isolate()->serializer_enabled());
-
   set_default_eager_compile_hint(can_compile_lazily
                                      ? FunctionLiteral::kShouldLazyCompile
                                      : FunctionLiteral::kShouldEagerCompile);