patch 8.0.0152: stray channellog created when running tests

Problem:    Running the channel test creates channellog.
Solution:   Delete the debug line.

src/testdir/test_channel.vim

@@ -279,7 +279,6 @@ func Ch_channel_handler(port)
 endfunc
 
 func Test_channel_handler()
-call ch_logfile('channellog', 'w')
   call ch_log('Test_channel_handler()')
   let g:Ch_reply = ""
   let s:chopt.callback = 'Ch_handler'

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    152,
 /**/
     151,
 /**/