Removed Countable::count() change info from UPGRADE.INTERNALS too

UPGRADING.INTERNALS

@@ -12,9 +12,8 @@ UPGRADE NOTES - PHP X.Y
   g. Additional str_* APIs
   h. Addition of zend_hash_reindex
   i. Addition of zend_hash_splice
-  j. An additional parameter is sent to Countable::count()
-  k. Unserialization of manipulated object strings
-  l. Removal of IS_CONSTANT_ARRAY and IS_CONSTANT_INDEX hack
+  j. Unserialization of manipulated object strings
+  k. Removal of IS_CONSTANT_ARRAY and IS_CONSTANT_INDEX hack
 
 2. Build system changes
   a. Unix build system changes
@@ -185,14 +184,7 @@ UPGRADE NOTES - PHP X.Y
   IAP of ht (for compatibility with the previous implementation) and resets
   CVs if the passed hashtable is the global symbol table.
 
-  j. An additional parameter is sent to Countable::count()
-
-  That parameter denotes the $mode passed to count; it shouldn't affect any
-  userland code, but any zend_parse_parameters() used with no arguments should
-  fail. Extensions which implement Countable internally, need to accept one
-  optional long as parameter.
-
-  k. Unserialization of manipulated object strings
+  j. Unserialization of manipulated object strings
 
   Strings requiring unserialization of objects are now explicitly checked
   whether the object they contain implements the Serializable interface.
@@ -207,7 +199,7 @@ UPGRADE NOTES - PHP X.Y
   fixed at the appropriate place by checking for the presence of the
   serialize callback in the class entry.
 
-  l. Removal of IS_CONSTANT_ARRAY and IS_CONSTANT_INDEX hack
+  k. Removal of IS_CONSTANT_ARRAY and IS_CONSTANT_INDEX hack
 
   These two #defines disappeared. Instead we have now IS_CONSTANT_AST which
   covers also the functionality IS_CONSTANT_ARRAY bid and furthermore the