Remove obsolete entity for removed element

Author: robander

doctypes/dtd/base/commonElements.ent

@@ -66,7 +66,6 @@
 <!ENTITY % term        "term"                                        >
 <!ENTITY % ph          "ph"                                          >
 <!ENTITY % tm          "tm"                                          >
-<!ENTITY % state       "state"                                       >
 <!ENTITY % image       "image"                                       >
 <!ENTITY % alt         "alt"                                         >
 <!ENTITY % longdescref "longdescref"                                 >