Axe some backported entries.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1738822 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/CHANGES b/CHANGES
index 605e3c0..7ab9a5a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -7,17 +7,6 @@
   *) apr_table_overlap: Add APR_OVERLAP_TABLES_ADD to merge and set when
      overlapping tables. [Graham Leggett]
 
-  *) apr_proc/global_mutex: Fix API regarding the native OS mutexes
-     accessors from/to available APR mechanisms, adding the new functions
-     apr_os_proc_mutex_get_ex() and apr_os_proc_mutex_set_ex() which give
-     control to the user over the selected mechanisms, including the missing
-     POSIX semaphores (sem_t) on platforms supporting them.
-     [Yann Ylavic]
-
-  *) apr_proc_mutex-pthread: Refcount shared mutexes usage to avoid
-     destruction while still is use by some process(es).  PR 49504.
-     [Yann Ylavic]
-
   *) apr_filepath_merge: Fix truename length calculation on Windows
      in cases where the "short" name variant is actually longer than
      the "long" or "true" name. See: testnames.c:merge_shortname().