Enable Theora module for HTML5 platform

(cherry picked from commit b4b816c1226df7205c878b58e0a704102a149003)

platform/javascript/detect.py

@@ -30,7 +30,6 @@ def get_flags():
         ('module_etc1_enabled', 'no'),
         ('module_mpc_enabled', 'no'),
         ('module_speex_enabled', 'no'),
-        ('module_theora_enabled', 'no'),
     ]