Reverts rev 316218 as it breaks parsing the [general] section of sip.conf.

The functionality this patch attempts to achieve should already
be possible using [general](+) in the config file.

issue #17957



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@316798 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -108,11 +108,6 @@ FollowMe
    compatability for a FollowMe call with certain dialplan apps, options, and
    functions.
 
-SIP Changes
------------
- * Multiple [general] contexts are now permitted within sip.conf.  They will be
-   merged at load time.
-
 ------------------------------------------------------------------------------
 --- Functionality changes from Asterisk 1.6.2 to Asterisk 1.8 ----------------
 ------------------------------------------------------------------------------