[gcc r16-3630] doc: drop verify-canonical-types=1 ref

[Sam James]

https://gcc.gnu.org/g:634d9f99868d9dd3eccd4f4b2d30ae874418cc65

commit r16-3630-g634d9f99868d9dd3eccd4f4b2d30ae874418cc65
Author: Sam James <sam@gentoo.org>
Date:   Tue Nov 19 08:05:11 2024 +0000

    doc: drop verify-canonical-types=1 ref
    
    --param verify-canonical-types was removed back in r0-81986-g7313518b90b280.
    
    The same verification is controlled via our generic checking framework
    these days.
    
    gcc/ChangeLog:
    
            * doc/generic.texi (TYPE_CANONICAL): Don't mention long-removed
            --param verify-canonical-types.

Diff:
---
 gcc/doc/generic.texi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/gcc/doc/generic.texi b/gcc/doc/generic.texi
index d4ac580a7a8b..55083b278da4 100644
--- a/gcc/doc/generic.texi
+++ b/gcc/doc/generic.texi
@@ -397,8 +397,7 @@ guarantee that @code{TYPE_CANONICAL} will point to the canonical type,
 use @code{SET_TYPE_STRUCTURAL_EQUALITY} to make sure that the new
 type--and any type constructed based on it--requires structural
 equality. If you suspect that the canonical type system is
-miscomparing types, pass @code{--param verify-canonical-types=1} to
-the compiler or configure with @code{--enable-checking} to force the
+miscomparing types, configure with @code{--enable-checking} to force the
 compiler to verify its canonical-type comparisons against the
 structural comparisons; the compiler will then print any warnings if
 the canonical types miscompare.