[groff] 13/26: doc/groff.texi: Fix content nit.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit e0ec8b2ae2e110605b461a3255ca5d976b5a960d
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Sat Dec 17 13:49:00 2022 -0600

    doc/groff.texi: Fix content nit.
    
    Partially revert commit a4d23d4c28, 14 December.
    
    This register is already discussed in the unnumbered section headings;
    I forgot that groff.texi's presentation of document control setting
    material differs from ms.ms and groff_ms(7).
---
 doc/groff.texi | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/doc/groff.texi b/doc/groff.texi
index 9b9cd3c19..30d0c44c6 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -3259,14 +3259,6 @@ insertion of vertical space in the amount stored in the 
@code{PD}
 register, except at page or column breaks.  Alternatively, a blank input
 line breaks the output line and vertically spaces by one vee.
 
-The @code{PORPHANS} register defines the minimum number of initial lines
-of any paragraph that must be kept together to avoid isolated lines at
-the bottom of a page.  If a new paragraph is started close to the bottom
-of a page, and there is insufficient space to accommodate
-@samp{\[rs]n[PORPHANS]} lines before an automatic page break, then a
-page break is forced before the start of the paragraph.  This is a GNU
-extension.
-
 @Defmac {LP, , ms}
 Set a paragraph without any (additional) indentation.
 @endDefmac