Bug 652989 - Enable methodjit for chrome in Fennec [r=mfinkle]

mobile/app/mobile.js

@@ -386,7 +386,6 @@ pref("content.sink.perf_parse_time", 50000000);
 
 pref("javascript.options.mem.gc_frequency", 300);
 pref("javascript.options.mem.high_water_mark", 32);
-pref("javascript.options.methodjit.chrome", false);
 
 pref("dom.max_chrome_script_run_time", 0); // disable slow script dialog for chrome
 pref("dom.max_script_run_time", 20);