Revert "Add `r'/`l' grep command history commands"

This reverts commit a32eea60ac90d367435860fe3a10bf843e6f497c.

1 files changed, 0 insertions, 7 deletions

diff --git a/doc/emacs/building.texi b/doc/emacs/building.texi
index 059c7cae89c..03fa0ed83b2 100644
--- a/doc/emacs/building.texi
+++ b/doc/emacs/building.texi
@@ -390,13 +390,6 @@ is called with the file name as the parameter and should return
 non-nil if the buffer is to be saved), and any other non-@code{nil}
 value means that all buffers should be saved without asking.
 
-  In addition to the normal compilation mode commands (for
-next/previous match and so on), two additional commands are available
-for accessing the @command{grep} command history.  @kbd{l}
-(@code{grep-backward-history}) will re-run successively the previous
-@command{grep} commands, and @kbd{r} (@code{grep-forward-history}
-will go ``forward'' in the command history.
-
 @findex grep-find
 @findex find-grep
   The command @kbd{M-x grep-find} (also available as @kbd{M-x