manual: remove section on porcelains

People should already know git and Cogito is being phased out.

diff --git a/manual.txt b/manual.txt
index 372391e..2471228 100644 (file)
--- a/manual.txt
+++ b/manual.txt
@@ -508,11 +508,6 @@ Online resources:
 
 include::SITES[]
 
-Git porcelains:
-
- - link:http://www.kernel.org/pub/software/scm/git/docs/[git],
- - link:http://www.kernel.org/pub/software/scm/cogito/docs/[Cogito]
-
 Other git repository browsers:
 
  - gitk(1)