Remove an opinionated section on "What Eshell is not"

I don't find this information to accurately reflect possible use cases
for Eshell; plus, it doesn't offer much in the way of information,
just opinion.

diff --git a/doc/misc/eshell.texi b/doc/misc/eshell.texi
index a7651b21d61127f8ebb2daaa66c5cdfc1fb78332..8963826c4cc3e7d52a2992e3b6af1de352fbf09c 100644 (file)
--- a/doc/misc/eshell.texi
+++ b/doc/misc/eshell.texi
@@ -142,24 +142,6 @@ Any tool you use often deserves the time spent learning to master it.
 looks like: But don't let it fool you; once you know what's going on,
 it's easier than it looks: @code{ls -lt **/*.doc(Lk+50aM+5)}.}
 
-@section What Eshell is not
-@cindex Eshell, what it is not
-@cindex what Eshell is not
-@cindex what isn't Eshell?
-
-Eshell is @emph{not} a replacement for system shells such as
-@command{bash} or @command{zsh}.  Use Eshell when you want to move
-text between Emacs and external processes; if you only want to pipe
-output from one external process to another (and then another, and so
-on), use a system shell, because Emacs's IO system is buffer oriented,
-not stream oriented, and is very inefficient at such tasks.  If you
-want to write shell scripts in Eshell, don't; either write an elisp
-library or use a system shell.
-
-Some things Eshell just doesn't do well.  It fills the niche between
-IELM and your system shell, where the peculiar use-cases lie, and it
-is less than ideal outside that niche.
-
 @menu
 * Contributors to Eshell::      People who have helped out!
 @end menu